• 10% dilution in DPG for safe and efficient oil-based use
• Adds aldehydic sparkle and citrusy brightness to top notes
• Ideal for aldehydic florals, clean fougères, soap-style perfumes, and fresh mists
• Helps balance heavy floral hearts with fresh top accents
• Works well in roll-ons, solid perfumes, and oil-based mists

Aldehyde C-8 (10% in DPG) — also known as Octanal — is a short-chain fatty aldehyde with a fresh citrusy-waxy scent, accompanied by subtle green and slightly soapy metallic tones. It’s widely used in perfumery to give top notes a sparkling clean lift, particularly in citrus colognes, aldehydic florals, fougères, and vintage-inspired blends.

This 10% dilution in DPG (Dipropylene Glycol) makes it convenient for use in oil perfumes, attars, roll-ons, incense pastes, and solid perfumes. A little goes a long way in brightening and diffusing compositions.

INCI Name: Aldehyde C-8 (Octanal)

CAS Number: 124-13-0

Molecular Formula: C8H16O

Appearance: Clear, colorless liquid

Odor Description: Citrus, waxy, aldehydic, metallic, fresh

Purity: 10% in DPG

Boiling Point: ~171°C

Flash Point: ~60°C

Density: ~0.82 g/cm³

Solubility: Soluble in alcohol and DPG

Recommended Usage Level: 0.1%–2% of this dilution

Category: Aldehydic Top Note Modifier – Perfumery Use

Use 0.2–1.5% to lift and brighten the top notes in citrus, aldehydic, or classic cologne compositions.

💡 To give your perfume a clean, citrusy aldehydic pop 🍊💫, use 0.2–1.5% Aldehyde C-8 (10% in DPG) in oil mists or attars.

🌿 Blend with neroli, petitgrain, or bergamot for fresh citrus cologne bases.

🌸 Pair with rose, jasmine, or muguet for a crisp floral top.

🧼 Use in soap-style perfumes or clean musky bases for a classic feel.

🔄 Allow your formula to age for 3–5 days so the aldehydes round out smoothly.

⚠️ High impact—use minimally to avoid harshness.

Q1: What does Aldehyde C-8 smell like?

It smells fresh, citrusy, waxy, and metallic, with aldehydic sharpness and a soapy edge—perfect for uplifting top notes.

Q2: What types of perfumes use Aldehyde C-8?

Often used in aldehydic florals, vintage fougères, citrus colognes, and soapy-clean fragrance bases.

Q3: Is it suitable for oil-based perfumes?

Yes! This DPG dilution is ideal for use in roll-ons, oil perfumes, solid formats, and incense-style blends.

Q4: Is it synthetic or natural?

It’s a synthetic fatty aldehyde, though similar aldehydes occur naturally in citrus peels.

Q5: What does it pair well with?

Pairs well with neroli, petitgrain, jasmine, musk, iris, and other aldehydes like C-10 or C-11.