Ingredient Glossary · Aroma Chemicals

ACHP

Allyl Cyclohexyl Propionate · Ananas ki Khushboo · اناناس کی خوشبو · Pineapple Ester

Pakistan's premier pineapple ester — a fully synthetic aliphatic ester delivering powerful, smooth, tropical-pineapple character with extraordinary tenacity. A comprehensive scientific, olfactory and formulation reference covering ACHP's cyclohexyl ring chemistry, OR1A1 receptor science, IFRA Allyl Esters specification, Halal status, Pakistani market applications, and three complete accord formulas for attar, EDP, and body care.

CAS
2705-87-5
Identifier
251 hr
Tenacity
On Strip
Allyl
Esters
IFRA Spec
Scroll
Quick Reference

At a Glance

Common Names
ACHP · Allyl Cyclohexyl Propionate · Pineapple Ester · Ananolide
CAS / FEMA / EC
CAS 2705-87-5  ·  FEMA 2026
EC / EINECS: 220-292-5
Molecular Formula
C₁₂H₂₀O₂  ·  MW 196.29 g/mol
Aliphatic Ester — Propanoate class
Physical Form
Colourless to pale yellow oily liquid · Mobile at 25°C · Density 0.945–0.950 g/mL
LogP / Boiling Point
LogP ≈3.8 (moderately lipophilic)
BP 91°C @ 1 mmHg; ~223°C at 1 atm
Density / RI
0.945–0.950 g/mL at 20°C
RI 1.457–1.462 at 20°C (n20/D)
Flash Point
109°C (closed cup) · Safe for candle applications · No fire hazard at ambient storage
Halal Status
✓ Halal Permissible — 100% synthetic. Cinnamic acid + allyl alcohol via Fischer esterification. Zero animal inputs, no ethanol, no fermentation
Odour Character
Powerful, sweet, ripe pineapple; green waxy freshness; herbal-floral chamomile undertone — Ananas ki Khushboo (اناناس کی خوشبو) in Urdu
Odour Threshold
0.1259 µg/L (micrograms per litre of air) — moderate threshold; detectable at low airborne concentrations; supports trace-level impact
IFRA Status (51st Amend.)
✓ Allyl Esters Specification — Not concentration-restricted. Sole requirement: residual allyl alcohol < 0.1% w/w in finished ester
EU Allergen Status
✓ NOT listed — No mandatory allergen declaration required at any concentration. Commercial advantage over Linalool, Geraniol and Eugenol
Typical Use Level
Invisible modifier: 0.02–0.1% · Fruity top note: 0.5–1.5% · Pineapple accord: 2–5% · Functional fragrance: 2–10%
Shelf Life (sealed)
2–3 years below 25°C, away from UV light · Store in sealed amber glass or HDPE · Avoid iron/copper containers
Introduction

Ananas ki Khushboo — The Pineapple Anchor of Modern Perfumery

Among the hundreds of synthetic esters available to the contemporary perfumer, Allyl Cyclohexyl Propionate (ACHP) occupies a uniquely productive niche: it delivers a pineapple aroma of remarkable authenticity and staying power that no short-chain ester can match. Where ethyl butyrate evaporates within minutes and allyl caproate tends toward sharpness, ACHP lingers — on skin, on fabric, and in the memory of whoever encounters it — with a smooth, juicy, tropical sweetness that connects equally with the fruity oriental traditions of South Asia and the bright tropical fragrances of modern global perfumery. Steffen Arctander, writing in his definitive 1969 reference work, described it as having a powerful and sweet-fruity odour of pineapple, smoother and sweeter than allyl caproate, with a fruitiness similar to linalyl acetate. This assessment remains entirely accurate today.

For Pakistani formulators, ACHP opens doors that were previously closed. Traditional attar culture has focused overwhelmingly on florals — gulab (rose), jasmine, chameli, kewra — and on the resinous-woody depth of oud and sandalwood bases. The integration of tropical fruity notes into contemporary Pakistani attars, body mists, and EDP sprays represents one of the most commercially exciting frontiers of the local industry. Young consumers in Lahore and Karachi, increasingly exposed to global fragrance trends through social media and imported products, are drawn to fruity-floral and fruity-oriental combinations. ACHP, at its standard use level of 1% in an attar compound, provides the tropical sparkle these consumers seek — at a fraction of the cost of natural pineapple-character materials. At a single gram diluted to 1% in DPG, detectable fruitiness persists for over 250 hours on a smelling strip — a performance metric rare among true fruity esters.

Bio Shop™ Pakistan — Sourcing Note

Bio Shop™ Pakistan stocks ACHP in both the pure fragrance grade (GC ≥98%) and the 10% DPG dilution — the same specifications used by professional fragrance houses worldwide. GC-verified batches from ISO 9001-compliant international manufacturers with allyl alcohol confirmed <0.1% per IFRA specification. The pure grade is cost-effective for all formulas ≥1% ACHP; the 10% DPG is ideal for sub-0.5% precision dosing. Visit bioshop.pk/products/achp-allyl-cyclohexyl-propionate for current stock and pricing.

Molecular Identity

Chemical Identification

IUPAC NameProp-2-en-1-yl 3-cyclohexylpropanoate
CAS Number2705-87-5
FEMA NumberFEMA 2026 — GRAS approved flavouring agent
EC / EINECS220-292-5
REACH Registration01-2119976355-27-0002
Formula / MWC₁₂H₂₀O₂  ·  196.29 g/mol  ·  Degree of Unsaturation: 2 (one ring + one C=C)
Chemical ClassAliphatic Ester (Propanoate) — medium-chain ester with cyclic acid component
Functional GroupsEster linkage (–COO–) + terminal allyl group (CH₂=CH–CH₂–) + cyclohexyl ring
SMILESO=C(OCC=C)CCC1CCCCC1  ·  InChIKey: FZFZXHRPRZOOSN-UHFFFAOYSA-N
LogP / OpticalLogP ≈3.8 (moderately lipophilic)  ·  Optical rotation ±0° (achiral molecule)
Olfactory ReceptorOR1A1 and related medium-chain fruity ester receptor subtypes
Natural OccurrenceDoes NOT occur in nature — 100% synthetic. No natural extract equivalent available
Synthesis RouteTwo-step: (1) Catalytic hydrogenation of cinnamic acid → 3-cyclohexylpropionic acid; (2) Fischer esterification with allyl alcohol. No animal inputs at any stage
Urdu / PakistanAnanas (اناناس) — Pineapple · Ananas ki Khushboo — Fragrance of Pineapple
Grade & Purity Profiles

The Four Key Commercial Grades

ACHP is commercially available in multiple grades. Understanding the differences is critical for accurate formula calculation and compliance. Bio Shop™ Pakistan stocks both the pure fragrance grade and the 10% DPG dilution — the same specifications used by professional fragrance houses worldwide. Always verify allyl alcohol content from supplier documentation; this is the critical IFRA specification, not just overall purity.

Fragrance Grade · Bio Shop™ Pure
ACHP Pure
≥98% GC purity · Allyl alcohol <0.1% · Mobile liquid
GC Purity
≥98%
GC-verified · Colourless to pale yellow · Mobile at 25°C
"The professional standard. Use for all formulas ≥1% ACHP in compound — which covers virtually all attar and fine fragrance applications. IFRA-compliant per Allyl Esters specification. ISO 9001-sourced. Bio Shop™ Pakistan primary stock. Cost-effective; remarkable tenacity at trace levels."
10% Dilution · Bio Shop™ Grade
ACHP 10% in DPG
10g ACHP pure per 90g DPG · Precision micro-dosing grade
Actual ACHP Content
10%
10 parts ACHP / 90 parts DPG · Fully mobile liquid at ambient
"For formulas requiring less than 0.5% ACHP where viscosity or scale accuracy makes pure-grade dosing impractical. Critical calculation: 1g of 10% solution = 0.1g actual ACHP. If formula calls for 0.2g ACHP, use 2.0g of 10% solution. Always adjust formula calculations accordingly."
Food/Flavour Grade · FEMA GRAS
FCC / FEMA 2026
Food Chemicals Codex spec · Heavy metals tested · FEMA 2026 GRAS
Regulatory Clearance
Dual
FEMA GRAS 2026 · FDA 21 CFR 172.515 · JECFA approved · Kosher certified (select manufacturers)
"The same chemical identity as fragrance grade — the distinction lies in additional heavy metal, arsenic, and residual solvent testing. This grade is approved for food flavouring at 10–40 ppm in finished food. Unique among common aroma chemicals — ACHP is both fragrance and food ingredient. Not required for fragrance use."
⚠ Avoid Without Verification
Adulterated / Unknown
Pakistan grey market · DEP dilution · Flavour oil substitution · Over-diluted DPG
Actual ACHP Content
Unknown
Strong yellow colour at room temp = suspect DEP or flavour oil
"Common Pakistan adulterants: DEP-based pineapple flavour blends (smell correct on opening, fade within 30 min) and over-diluted DPG (performs poorly at stated level). Genuine ACHP at 1% in DPG remains detectable after 24 hours. Check RI with refractometer: n20/D should be 1.457–1.462. Strong yellow colour indicates contamination."
Dosage Science

Concentration Behaviour

ACHP behaves fundamentally differently at different usage levels — from invisible fruity texture-enhancer at 0.02% to explicit pineapple accord anchor at 2–5%. This concentration-dependent character makes it both a precision modifier for floral compositions and a dominant tropical top note when needed. For Pakistani formulators, understanding these thresholds enables ACHP to be used far more efficiently than by simply "adding fruitiness" at guesswork levels. In Lahore and Karachi summer conditions, increase ACHP by 20–30% above temperate-climate formulas to compensate for increased ambient evaporation.

0.02–0.1% in CompoundInvisible Modifier
Below identifiable tropical threshold; subtle fruity sweetness and juicy texture that lifts floral compositions without announcing pineapple. Pakistani gulab (rose) attars gain contemporary freshness at this level; jasmine and ylang-ylang compounds become more vibrant. Best application: invisible enhancer in floral attars, oriental base brightener
0.1–0.5% in CompoundFruity Texture
Subtle tropical sweetness detectable; juicy quality emerges; chamomile herbal hint begins to appear at upper end of this range. Transforms perception of rose from classical to contemporary — exactly the effect young Pakistani consumers associate with modernity. Best application: fruity modifier in floral-oriental EDP compounds, rose attar moderniser
0.5–2% in CompoundExplicit Pineapple
Pineapple character becomes clearly identifiable; tropical and waxy-green freshness; chamomile herbal undertone distinct at this level. The most commercially important range for Pakistani fine fragrance — sufficient to anchor a fruity-oriental composition. Best application: tropical attar top note, fruity-floral EDP compound anchor, pineapple accords. Start at 1% pure.
2–5% in CompoundDominant Tropical
Dominant tropical-pineapple; waxy, sweet, confectionery quality develops. Full character for pineapple accord construction. Excellent for fabric care formulas — the fruity note penetrates into fabric fibres with substantivity exceeding several days. Best application: pineapple accord builders, tutti-frutti blends, tropical-theme attars, laundry fragrance compounds
5–10% in CompoundVery Powerful
Very strong pineapple-candy character; overwhelming solo on strip but excellent in blends where high dilution is planned. Optimal for concentrated functional fragrance compounds for household products and fabric softeners. In Pakistan: use in fragrance compounds destined for high-dilution functional products. Best application: concentrated pineapple accord for dilution, fabric care compound
10%+ in CompoundIntense — Dilute End Use Only
Intense and potentially cloying at full strength; use exclusively in very dilute finished products (food flavouring at 10–40 ppm, ultra-concentrated functional fragrance concentrate). In fragrance use: only meaningful in hyper-concentrated compounds intended for extreme dilution. For Pakistani food manufacturers: FEMA GRAS 2026 permits this level in food applications at correct finished-product ppm
Sensory Analysis

Olfactory Evolution

Top Note · 0–30 min
Tropical Launch
The opening of ACHP is immediately recognisable and compelling: a burst of sweet, ripe pineapple — not the synthetic candy approximation of cheap air fresheners, but a rounder, more voluminous fruitiness that carries true tropical credibility. The allyl terminus creates high diffusivity; the molecule releases rapidly from solution and travels efficiently to olfactory receptors. In Pakistan, this opening evokes cutting a ripe ananas at a Lahore fruit stall in summer — the fizzy, diffusive, fresh tropical lift is universally recognisable and immediately appealing to young consumers. In Karachi's heat, this phase intensifies: ACHP's cyclohexyl anchor actually helps maintain longevity relative to short-chain esters that evaporate faster in high temperatures.
Heart Modifier · 30 min – 2 hr
Waxy Sweetness
As the initial pineapple burst softens, a waxy sweetness and herbal-floral chamomile undertone emerges — what Pell Wall Perfumes describes as reminiscent of the apple-like scent of fresh chamomile. This herbal quality connects ACHP to the bakhoor and herbal smoke traditions of Pakistani aromatic culture more directly than its "tropical" classification might suggest. At this stage ACHP functions as a bridge: it preserves the fruity character of the composition through the transition from top to heart, preventing the typical "crash" where an opening loses character entirely after 20 minutes. The (cyclo)hexyl ring contributes body and roundness that distinguishes ACHP from all-linear esters at this stage.
Dry-down · 2–6 hr
Smooth Tropical Body
The dry-down of ACHP reveals its most commercially valuable quality: a smooth fruity-sweet body with tropical character and a faint woody-cyclohexyl support that provides structure without dominance. On skin in Lahore or Karachi heat, the increased temperature drives greater diffusion — ACHP performs better in warmth than in cool conditions, as the elevated skin temperature accelerates release from the sebaceous layer where its LogP 3.8 causes it to partition. The evening-garden quality of this stage — lingering sweet-fruity warmth at the end of a Pakistani summer day — is exactly the character that makes ACHP indispensable in contemporary urban Pakistani fragrance.
Fabric Persistence · 24 hr+
Pineapple Legacy
ACHP's 251-hour tenacity on a smelling strip at 100% concentration (industry data, Perfume Extract standard) is extraordinary for a top-note fruity ester and is the defining technical advantage over all short-chain alternatives. On fabric — the critical test for Pakistani wedding and Eid attars where the garment must carry fragrance throughout a 12+ hour celebration — ACHP remains detectable for over a week in controlled strip tests. This substantivity arises from the cyclohexyl ring's lipophilicity anchoring the molecule to textile fibres. At 1% in DPG on a cotton strip, genuine ACHP remains clearly detectable at 24 hours. Adulterated material fades within 2–3 hours — a practical field verification test for all Pakistani buyers.
Pineapple Tropical Sweet Waxy-Green Chamomile Hint Ripe Fruit Juicy Ananas ki Khushboo Diffusive Tenacious
Formulation Accords

Three Complete Formulas

Three production-ready formulas from the Bio Shop™ Pakistan reference document — exact weights, exact percentages. All ingredients available at bioshop.pk. Formula 1 is a DPG attar (no alcohol — halal for all markets). Formula 2 is an EDP compound using Perfume Premix as the sole alcohol base. Formula 3 is a tropical body lotion fragrance compound.

Ananas ki Khushboo  ·  اناناس کی خوشبو
Tropical Pineapple DPG Attar · No alcohol · 100g batch · Roll-on dabba or bakhoor base
Method
Pre-blend all aromatic ingredients in a beaker; stir to combine. Add DPG in three portions, stirring between each. Stir 5 minutes at room temperature — do not heat. Fill into amber roll-on or dabba bottles; seal immediately. Rest 24 hours before evaluation; optimal character at 48–72 hours. Longevity: 6–8 hours on skin. Target: urban Pakistani youth; Eid and summer occasion attar.
Tropical Sun EDP  ·  ٹراپیکل سن
Fruity-Floral EDP Compound · Perfume Premix base · 100g compound · Unisex / female-leaning · Urban Pakistan 18–40
Linalool (pure)2.5g  2.5%
Finished Bottle — Perfume Premix Only
EDP: 20g compound + 80g Perfume Premix  ·  EDT: 15g + 85g  ·  Parfum: 28g + 72g. Mature sealed, 2–4 weeks cool dark location before bottling. Longevity: 8–12 hours on skin. Sillage: strong fruity-floral-musky.
Ananas Body Lotion  ·  اناناس باڈی لوشن
Tropical Pineapple Body Lotion Compound · Use 3–5% in finished lotion base · 100g compound batch
ACHP 10% in DPG8.0g  0.8% actual ACHP
Tonalide 10% in DPG5.0g  0.5% actual Tonalide
Usage in Finished Lotion
Add 3–5g of this compound per 100g base lotion. Stir gently at room temperature — do not heat. Package in opaque pump bottles immediately. Performance: pineapple-floral top evolves to jasmine-rose heart on skin; lasting sweet musk dry-down 4–8 hours. EU export: declare Benzyl Salicylate if above 0.01%.
Synergies

Classic Pairings

ACHP is chemically compatible with essentially all fragrance materials. The following pairings represent the most commercially successful and culturally relevant combinations for Pakistani formulation, all confirmed from the ACHP docx reference. ACHP pairs most powerfully with jasmine-type materials (Hedione amplifies ACHP's fruity diffusion), with citrus (D-Limonene extends the tropical opening), and with floral musks (Galaxolide and Ethylene Brassylate anchor the composition for Pakistan's longevity expectations).

Pineapple Ester Comparison

ACHP vs. Alternatives

Allyl Caproate (Allyl Hexanoate)
Allyl Ester · Hexanoate chain · No ring · CAS 123-68-2
Aroma vs. ACHP
Sharper, greener pineapple with more solvent character; less smooth and sweet than ACHP; shorter tenacity due to no cyclohexyl ring
IFRA Status
Allyl Esters specification — same allyl alcohol <0.1% requirement as ACHP; not concentration-restricted
Use with ACHP
Synergistic blend: ACHP 1% + Allyl Caproate 3% → tames Caproate's sharpness and creates multi-faceted natural tropical fruit character
Pakistan Application
Use at 20–30% of ACHP level in pineapple accords to add sharp green-fruity facet; not suitable as sole pineapple material due to tenacity deficit
Verdict: Useful modifier alongside ACHP. Allyl Caproate adds sharp-green pineapple lift while ACHP provides the smooth, tenacious tropical body. Available at bioshop.pk/products/allyl-caproate-allyl-hexanoate
AAG — Allyl Amyl Glycolate
Allyl Ester · Glycolate type · CAS 67634-00-8 · Pineapple-Cucumber-Aquatic
Aroma vs. ACHP
Pineapple with distinct cucumber-green and aquatic facet — more watery and fresh than ACHP's warmer tropical sweetness; distinctly different olfactory direction
IFRA Status
Allyl Esters specification — allyl alcohol <0.1% requirement; not concentration-restricted in fine fragrance
Use with ACHP
Aquatic-tropical combination: AAG 0.5% + ACHP 1% adds a fresh, watery facet to the pineapple character — excellent for aquatic-fruity EDP top notes
Pakistan Application
Strong appeal for Karachi market where aquatic freshness is valued; less suitable for traditional floral attar contexts where ACHP's warmer tropical character integrates better
Verdict: Complementary, not competitive. Choose ACHP for warm tropical pineapple; choose AAG for aquatic-pineapple. Together they create a multi-dimensional tropical opening. Available at bioshop.pk/products/aag-allyl-amyl-glycolate
Linalyl Acetate
Terpene Ester · Linalool acetate · CAS 115-95-7 · Bergamot-Lavender-Fruity
Aroma vs. ACHP
Bergamot-lavender with fruity floral quality — floral-fruity direction rather than pure tropical; lighter, less tropical than ACHP; Arctander noted similarity in fruitiness type
IFRA Status
Not restricted — no concentration limits in fine fragrance. Not EU allergen-listed. Free from Allyl Ester specification constraints
Use with ACHP
The classic Arctander pairing: ACHP 1% + Linalyl Acetate 3% → refined citrus-pineapple fruity-floral with bergamot lift and tropical anchor. Foundation for modern floral oriental EDP
Pakistan Application
Excellent complement in urban-feminine EDP compounds; Linalyl Acetate adds European elegance while ACHP adds tropical-South Asian warmth. Used together in Formula 1 (Ananas ki Khushboo attar)
Verdict: Essential companion, not replacement. The ACHP + Linalyl Acetate accord is one of the foundational fruity-floral pairings in perfumery. Available at bioshop.pk/products/linalyl-acetate
Hedione
Methyl Jasmonate · CAS 24851-98-7 · Jasmine-Diffusive-Fruity Nuance
Aroma vs. ACHP
Jasmine, diffusive, with a very subtle fruity nuance — not a fruity note per se, but Hedione amplifies ACHP's fruity diffusion dramatically through olfactory receptor activation
IFRA Status
Not restricted in any product category. Not EU allergen-listed. No specification requirements. Very high safety margin
Use with ACHP
ACHP 1% + Hedione 5% → extraordinary fruity-jasmine diffusion exceeding the sum of parts. Hedione's activating effect on olfactory receptors directly amplifies ACHP perception
Pakistan Application
The Hedione-ACHP combination is the backbone of modern fruity-floral fine fragrance worldwide; equally applicable in Pakistani EDP sprays and attar compounds for urban consumers
Verdict: The most powerful synergistic amplifier for ACHP. This pairing defines modern fruity-floral fine fragrance. Used in both Formula 1 and Formula 2. Available at bioshop.pk/products/hedione
Safety & Regulations

IFRA & Safety Overview

Educational summary of publicly available regulatory data as of 2024. Always consult the current IFRA Standards (51st Amendment), the ingredient Safety Data Sheet (SDS), and your regulatory advisor before commercial formulation. This document does not constitute regulatory or safety advice.

IFRA 51st Amendment — Allyl Esters Specification

Under IFRA's 51st Amendment, ACHP is addressed under the Allyl Esters Specification Standard (IFRA Standard Reference 238). This is a specification standard, not a concentration-restriction standard — ACHP has NO maximum usage limit that varies by product category. Pakistani perfumers may use ACHP at any technically appropriate level in fine fragrance and attars. The sole IFRA compliance requirement is that residual free allyl alcohol in the ester must remain below 0.1% w/w — a specification Bio Shop™ Pakistan verifies in all stock. This threshold prevents the delayed-irritant potential of allyl alcohol itself, not ACHP.

EU Allergen — NOT Listed (Commercial Advantage)

ACHP does not appear on the EU Annex III list of fragrance allergens — neither the original 26 nor the expanded proposed list under Regulation 1223/2009. This means ACHP requires NO mandatory declaration on cosmetic labels at any concentration in EU-market products. This is a significant commercial advantage for Pakistani exporters: unlike Linalool, Geraniol, or Eugenol (which require declaration above threshold concentrations), ACHP can be used freely in EU-bound products without adding it to ingredient declaration lists. This non-allergen status is one of ACHP's most commercially valuable regulatory attributes.

Pakistan DRAP & Domestic Market

No current ACHP restriction under Drug Regulatory Authority of Pakistan (DRAP) cosmetics guidelines. Pakistani formulators selling in the domestic market may use ACHP freely within IFRA specification limits. FEMA GRAS 2026 status confirms safety as a food-grade material under US regulations (FDA 21 CFR 172.515), which further supports halal permissibility assessments. For formal Halal certification of finished products, Bio Shop™ Pakistan can provide manufacturer documentation upon request to support your certification body's requirements.

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Human Safety Profile (RIFM / JECFA)

Acute oral LD₅₀ in rat: 585 mg/kg — moderately toxic category. Not a skin sensitiser when allyl alcohol content is below the 0.1% IFRA specification threshold; contact sensitisation mechanisms require higher allyl alcohol levels than those present in compliant-grade ACHP. Eye irritation: mild to moderate at undiluted concentration; avoid eye contact with neat material. Not phototoxic. JECFA (1996) assessed ACHP as acceptable at current intake levels as a food flavouring. LogP 3.8 means moderate lipophilicity — partitions into sebaceous layer providing skin substantivity without systemic concern at cosmetic use levels.

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Environmental & Stability Considerations

ACHP shows moderate aquatic ecotoxicity consistent with its lipophilicity (LogP 3.8); dispose responsibly — do not discharge bulk ACHP into waterways or sewer systems in Karachi or Lahore. The allyl terminal double bond is susceptible to autoxidation over extended periods, particularly in the presence of metal ions (copper, iron) or UV exposure, producing off-notes and potentially raising allyl alcohol content above the IFRA limit. Store in amber glass or HDPE; avoid metal containers. For industrial storage of large quantities, consider BHT antioxidant addition at 0.02%. Minimise headspace in partially used containers.

⚠️

Allyl Alcohol Specification — Critical IFRA Requirement

The critical IFRA requirement for all allyl ester materials, including ACHP, is that residual free allyl alcohol content must be below 0.1% w/w in the finished ester material. Allyl alcohol is a documented delayed skin irritant and sensitiser above this threshold — ACHP itself is not the sensitiser, but its potential hydrolysis product is. Bio Shop™ Pakistan sources ACHP to this specification. For commercial formulation houses: re-test allyl alcohol content by GC after 12 months of open storage in tropical conditions, as heat and humidity can accelerate ester hydrolysis over time. Monitor acid value as a secondary quality indicator (should remain <1 mg KOH/g).

Handling & Storage

Storing in Pakistan's Climate

Temperature
Below 25°C ideal. Refrigeration not required but beneficial for long-term storage. Summer temperatures above 40°C accelerate both evaporation of allyl component and oxidative degradation
Container Type
Amber glass (preferred — UV protection) or sealed HDPE drum. Avoid copper or iron containers — metal ions accelerate oxidation of the allyl terminal double bond
Light Exposure
Zero direct sunlight. UV exposure promotes photolytic cleavage of allyl double bond and accelerates oxidation producing off-notes. Fluorescent laboratory lighting acceptable
Shelf Life (sealed)
2–3 years from manufacture under correct conditions. Re-test GC purity (especially allyl alcohol <0.1%) after 12 months of open storage in tropical Pakistan conditions
Headspace Management
Minimise air headspace in partially used bottles. Purge with nitrogen if available for extended storage. ACHP is a mobile liquid at ambient — no warming required unlike highly viscous musks
Measuring Technique
Mobile liquid at room temperature — easy to pour and weigh. Use digital scale (min 0.01g resolution). Use 10% DPG dilution for amounts below 0.5g to ensure measurement accuracy
Lahore Summer (May–Aug)
Summer temperatures exceed 40°C — store in basement or air-conditioned space. Extreme heat significantly accelerates degradation of allyl double bond. Request early-morning delivery to minimise transit heat
Karachi Coastal
High humidity (70–90% RH) promotes moisture ingress which can slowly drive ester hydrolysis — raising allyl alcohol content above IFRA limit. Seal tightly; use silica gel desiccant packets in storage area. Amber glass preferred
Adulteration check: Pure ACHP (≥98% GC) is colourless to very pale straw, mobile liquid at 25°C. Strong yellow coloration indicates DEP or flavour oil dilution. Tenacity test: 1% in DPG on cotton smelling strip should remain detectable at 24 hours. Adulterated material (DEP-flavour blend, over-diluted DPG) fades within 2–3 hours. RI check: refractometer should read 1.457–1.462. Values outside this range indicate dilution or substitution.
FAQs

Frequently Asked Questions

How can I verify the purity of ACHP purchased in Pakistan? What adulterants should I watch for?+
The most reliable field verification is the tenacity test: dissolve 0.1g ACHP in 1mL DPG and apply to a cotton smelling strip. Genuine ACHP (251-hour substantivity at 100%) should be easily detectable at 24 hours. Adulterated material — typically DEP-based pineapple flavour blends or over-diluted DPG — loses detectability within 2–3 hours. Physical check: genuine ACHP is colourless to very pale straw; strong yellow coloration suggests DEP or flavour oil dilution. Refractive index (hand-held refractometer): n20/D should fall 1.457–1.462; values outside this range indicate dilution or substitution. Smell check: ACHP has clean sweet pineapple with faint herbal (chamomile-like) note — if the sample smells sharp, alcoholic, or predominantly solvent-like, suspect substitution. Bio Shop™ Pakistan sources from ISO 9001-compliant manufacturers with GC certificates of analysis.
How should I store ACHP in Pakistan's hot and humid climate?+
In Karachi, the primary risk is humidity (70–90% RH): moisture ingress can slowly promote ester hydrolysis, gradually raising allyl alcohol content above the critical IFRA specification limit of 0.1%. Store in amber glass with minimal headspace; silica gel desiccant packets in the storage area help maintain dry conditions. In Lahore, the primary risk is heat: summer temperatures exceeding 40°C significantly accelerate both evaporation of the allyl component and oxidative degradation of the terminal double bond. Store in an air-conditioned room, basement, or cool corner of the workshop during May–August. For both cities: keep ACHP sealed at all times when not in active use, avoid metal containers, and test GC purity annually on open stock, paying particular attention to allyl alcohol content. ACHP is a mobile liquid at ambient temperature — no warming is needed for measuring, unlike highly viscous musks.
Is ACHP halal? What is its exact synthesis origin?+
Yes, ACHP is halal permissible. It is a fully synthetic organic ester with no animal-derived ingredients in either the finished product or the synthesis pathway. The synthesis proceeds via two steps: first, cinnamic acid (available from petrochemical sources and from plant-derived trans-cinnamic acid from Styrax resin) undergoes catalytic hydrogenation to form 3-cyclohexylpropionic acid; second, this intermediate undergoes Fischer esterification with allyl alcohol (prop-2-en-1-ol) to form ACHP. Both intermediates and the final ester are petroleum-chemistry or plant-chemistry products. No animal inputs, porcine derivatives, or ethanol-of-concern are present at any stage of manufacture. The FEMA GRAS 2026 designation confirms safety as a food-grade material under US regulatory frameworks, further supporting halal permissibility. Pakistani Muslim consumers and JAKIM-aligned manufacturers can use ACHP with confidence in halal-certified fragrance products.
Which grade should I use — pure ACHP or the 10% DPG dilution?+
Use the pure grade (≥98% GC) for any formula calling for 1% or more ACHP in the compound — this covers virtually all attar and fine fragrance applications and is the most cost-effective approach. Bio Shop™ Pakistan stocks pure ACHP as the primary grade. Use the 10% DPG dilution when your formula calls for less than 0.5% ACHP in compound — typically when ACHP is being used as an invisible modifier or trace-level texture enhancer in small test batches under 50g, where measuring less than 0.5g pure on standard scales introduces unacceptable dosing error. As a starting guide: invisible fruity modifier → 0.1–0.3% pure (or 1–3% of 10% solution); tropical top note → 0.5–1.5% pure; pineapple accord anchor → 2–3% pure. Critical calculation for 10% grade: 1g of 10% solution = 0.1g actual ACHP. If formula calls for 0.2g ACHP, use 2.0g of 10% solution. Always document which grade and the percentage of actual ACHP for regulatory records.
How does ACHP compare to other pineapple materials for my application?+
For pure pineapple character with maximum tenacity on skin and fabric: ACHP is the clear choice — its 251-hour substantivity on strip is unmatched among fruity esters. For very volatile pineapple burst with minimal tenacity (where you want the pineapple to disappear quickly): use Ethyl Butyrate (short chain, extremely volatile, no cyclohexyl anchor). For green-pineapple-aquatic character with a fresh cucumber facet: use AAG (Allyl Amyl Glycolate; bioshop.pk/products/aag-allyl-amyl-glycolate). For sharper, greener pineapple with slightly more solvent character: use Allyl Caproate alongside ACHP (bioshop.pk/products/allyl-caproate-allyl-hexanoate). For bergamot-fruity direction rather than pure tropical: use Linalyl Acetate as primary, ACHP as supporting note. ACHP occupies the "best all-rounder" position in the pineapple ester category — the best balance of authentic tropical character, tenacity, cost, and IFRA compliance status.
Which Pakistani consumer segments respond best to ACHP compositions?+
Three consumer segments show the strongest positive response to ACHP-containing fragrances: (1) Urban youth aged 18–30, particularly in Lahore and Karachi, who associate fruity-tropical notes with modernity, global fragrance trends, and freshness — this is the primary target for ACHP-based attars and body mists. (2) Young women purchasing occasion fragrances for weddings and Eid who respond to light fruity-floral compositions over heavy oriental bases — ACHP at 0.5–1% in a floral compound makes the composition feel contemporary and premium. (3) The growing home fragrance consumer in urban Pakistan seeking tropical-fresh scents for air fresheners and candles as an alternative to traditional rose and jasmine. ACHP performs weakly with older, traditional attar consumers who strongly prefer pure floral or oud-based compositions — for this segment, use ACHP only as a trace-level invisible modifier (0.02–0.05%) rather than as a dominant character note.
What Urdu brand names work for ACHP-forward products? How does it perform in hot weather?+
Recommended Urdu brand and product names for ACHP-forward compositions: Ananas ki Khushboo (اناناس کی خوشبو — Fragrance of Pineapple), Tropical Taazgi (تراپیکل تازگی — Tropical Freshness), Ananas Gulab (اناناس گلاب — Pineapple Rose), Phal ki Khushboo (پھل کی خوشبو — Fruit Fragrance), or Shaadi ki Taazgi (شادی کی تازگی — Wedding Freshness) for bridal occasion attars. For hot weather performance: ACHP's cyclohexyl ring actually helps its warm-weather performance relative to short-chain esters — the increased molecular weight slows evaporation in hot conditions. However, formulators should increase ACHP concentration by approximately 20% for products designed for sale in open-air Pakistani markets in summer, to compensate for increased ambient evaporation from bottle headspace. On skin in Lahore (42°C summer) and Karachi (38°C) heat, ACHP releases more rapidly from skin, creating better initial sillage — a quality Pakistani consumers appreciate in hot, social environments.
Where does Bio Shop™ Pakistan source its ACHP? What quality standard does it meet?+
Bio Shop™ Pakistan sources ACHP from quality-certified international manufacturers with ISO 9001 manufacturing compliance. The material meets fragrance grade specifications: GC purity ≥98%, allyl alcohol <0.1% (critical IFRA specification), density 0.945–0.950 g/mL at 20°C, refractive index 1.457–1.462 (n20/D), acid value <1 mg KOH/g, and appearance colourless to pale yellow clear mobile liquid. Both the pure grade and the 10% DPG dilution are available at bioshop.pk. The pure grade is certified vegan, non-GMO, and fully synthetic — supporting halal permissibility documentation. For bulk commercial orders, formulators may request a certificate of analysis verifying the critical allyl alcohol specification; contact Bio Shop™ Pakistan through the website for commercial pricing and volume discount information.
Full Reference Document

Dive Deeper — Read the Complete Guide

Everything on this page and substantially more — the complete two-step synthesis mechanism from cinnamic acid through catalytic hydrogenation and Fischer esterification, full structure-odour relationship analysis of the cyclohexyl ring's tenacity contribution, landmark perfume appearances (Pleasures, Fantasy, Tommy Girl, 1990s tutti-frutti accords), comprehensive olfactory receptor science (OR1A1 activation), advanced blending strategies for Pakistani oriental and fruity-floral compositions, concentration-dependent behaviour table with all six dosage levels, complete formulation compatibility guide covering 12 ingredient/condition combinations, South Asian and Islamic aromatic heritage of pineapple in Mughal court culture, three full formula workings with accord maps, and a glossary of 18 key ACHP chemistry terms — all compiled in one complete reference document by Bio Shop™ Pakistan.