✦ Powerful green galbanum and violet leaf aroma chemical
✦ Ultra-low usage rate — extremely high impact
✦ Adds natural-feel leafy, vegetal sparkle to top notes
✦ Found in modern green florals, fougères, and masculine accords
✦ Vegan, cruelty-free, synthetic alternative to galbanum oil
✦ Used in iconic green and chypre style fine fragrances
✦ Excellent diffusion and lift in alcoholic perfumery

Stemone is a synthetic aroma chemical originally developed as a Givaudan captive specialty and now available more widely to the perfumery trade. It belongs to the family of high-impact green nitrile / ketone style materials that revolutionised modern green and galbanum accords from the late 20th century onward.

What makes Stemone special is its exceptional power and naturalness. A trace amount transforms a flat green note into a vivid, leafy, almost photographic galbanum and violet-leaf signature. It works where natural galbanum oil would be too resinous or costly, and gives perfumers a clean, reproducible green effect.

Bio Shop Pakistan supplies cosmetic-grade Stemone suitable for fine fragrance creation, attar and mukhallat blending, niche perfumery, functional fragrance, and modern cosmetic and home fragrance formulation.

SCENT DESCRIPTION : Stemone opens with a piercing fresh-cut green, leafy, and galbanum-like impression. There is a clear violet-leaf and tomato-leaf vegetal facet, with a slightly metallic, sappy edge. The effect is photographic — like crushing a green stem between the fingers. It feels cool, natural, and elegantly sharp.

NOTE POSITION : Top
FRAGRANCE FAMILY : Green · Galbanum · Vegetal
FACETS : Leafy · Galbanum · Violet leaf · Tomato leaf · Sappy
TENACITY : Low to Medium (2 to 4 hours on blotter)
SILLAGE : High — extremely diffusive even at trace dosage

CAS Number : 22457-23-4
Synonyms : Stemone (Givaudan trade name); green galbanum specialty
Purity % : ≥ 98% (verify with CoA)
Appearance : Colorless to pale yellow clear liquid
Odor Threshold : Extremely low — perceptible at ppm level
Molecular Weight: 143.2
Type : Synthetic

Fine Fragrance ★★★★★
Stemone is at its best in fine alcoholic perfumery. It powers green florals, chypres, fougères, and masculine colognes with a natural galbanum-violet-leaf sparkle.

Attar & Oriental Blending ★★★
Useful in trace amounts to add a fresh leafy lift to mukhallat top notes. Use sparingly to avoid clashing with heavy resins and oudh.

Functional Fragrance ★★★★
Performs well in shampoos, body washes, and reed diffusers where a clean green signature is desired. Strong diffusion makes it cost-effective.

Cosmetics ★★★
Suitable for leave-on and rinse-off products at very low dosage. Watch for any pale yellow tint at higher rates.

Home Fragrance ★★★★
Excellent in reed diffusers and room sprays for modern green compositions. In candles, top-note loss is normal but the impact remains.

EDP : 0.05% to 0.5% (rarely above 1%)
EDT : 0.05% to 0.5%
Body Lotion : 0.01% to 0.1%
Shampoo / Body Wash : 0.05% to 0.3%
Candle : 0.1% to 0.5%
Reed Diffuser : 0.1% to 0.5%
Soap : 0.05% to 0.2%

⚠️ Stemone is extremely powerful — overdose flattens compositions and creates a harsh, metallic green effect.
⚠️ IFRA 51st Amendment limits should be confirmed for the exact CAS at ifrafragrance.org before commercial use.
⚠️ Always verify current restrictions and category-specific limits with the supplier CoA and IFRA documentation.

Method 1 — Trace Top-Note Lift
Add 0.05% to 0.2% to the perfume concentrate to bring sharp, natural green diffusion to the opening.

Method 2 — Galbanum Reconstruction
Combine with galbanum oil, styrallyl acetate, and cis-3-hexenol to build a modern reconstructed galbanum accord.

Method 3 — Violet Leaf Accord
Pair with methyl heptin carbonate, ionones, and violet leaf absolute to create a luminous violet-leaf signature.

BEST PAIRINGS

Galbanum oil → reinforces resinous green base
Cis-3-hexenol → fresh cut grass and leaf realism
Triplal / Liffarome → leafy, melon-green amplification
Iso E Super → soft woody underlay and diffusion
Hedione → adds airy lift and naturalness
Cassis base → blackcurrant bud and green fruit synergy
Violet leaf absolute→ deepens vegetal violet character
Methyl pamplemousse → grapefruit-green citrus top

AVOID

Heavy gourmand and sweet oriental bases where green sharpness clashes
Overdose — creates a metallic, soapy off-note
Mixing too many high-impact greens together — they cancel each other out

In my hands Stemone is one of the most surgical green materials in the lab. A single drop in 100 g of base shifts the entire top note from generic to alive, and pulling back is always smarter than pushing forward. It is the difference between drawing a leaf and photographing one.

ADVANCED TIP
Build a 1% dilution of Stemone in DPG or perfumer's alcohol and dose from there — never the neat material. For a modern galbanum accord try 0.15% Stemone, 0.3% galbanum oil, 0.4% styrallyl acetate, 0.2% cis-3-hexenyl acetate, and 0.1% Triplal in the concentrate. This gives a vivid, photographic green opening that performs beautifully in alcoholic perfumery and reed diffusers.

Physical State : Liquid
Skin Safety : Use within IFRA limits; do not apply neat to skin
Eye Contact : Avoid — flush with water if exposed
Ingestion : Not for internal use
Ventilation : Handle in well-ventilated area
Storage : Cool, dark place away from heat and sunlight
Shelf Life : 24 months in sealed original container
Container : Amber glass or HDPE, tightly sealed
Flammability : Combustible liquid — keep away from open flame

Q: What does Stemone smell like?
A: Powerful green galbanum, violet leaf, and tomato leaf with a sharp leafy-vegetal lift.

Q: How much Stemone should I use?
A: Start at 0.05% to 0.2% in the concentrate. It is extremely powerful — use a 1% dilution to dose accurately.

Q: Is Stemone vegan and cruelty-free?
A: Yes. Stemone is a synthetic aroma chemical and contains no animal-derived material.

Q: Can I use Stemone in candles and reed diffusers?
A: Yes. It works well in reed diffusers and room sprays, and adds bright green opening to candles though some top-note loss in candles is normal.

Q: How does Stemone compare to natural galbanum oil?
A: Galbanum oil is resinous, complex, and base-leaning while Stemone is a sharp, clean, photographic green top note. Most modern green accords use both together for natural depth and diffusive lift.