α-Copaene

Also known as: (-)-ALPHA-COPAENE, (-)-α-COPAENE, Aglaiene, Copaen, Copaene, EINECS 223-364-4, MFCD00077631, Tricyclo[4.4.0.0(2,7)]dec-3-ene, 1,3-dimethyl-8-(1-methylethyl)-, st, Tricyclo[4.4.0.0(2,7)]dec-3-ene, 8-isopropyl-1,3-dimethyl-, Tricyclo[4.4.0.02,7]dec-3-ene, 1,3-dimethyl-8-(1-methylethyl)-, stereoisomer, Tricyclo[4.4.0.02,7]dec-3-ene, 8-isopropyl-1,3-dimethyl-, (1R,2S,6S,7S,8S)-(-)-, Ylangene, alpha-copaene, α-copaene

α-Copaene (CAS 3856-25-5) is a compound in the Aliphatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C15H24 and a molecular weight of 204.35100 g/mol. Key properties include a melting point of 74°C (lit.), a boiling point of 248.5ºC at 760mmHg, a density of 0.939g/cm3 and a flash point of 105.1ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 3856-25-5
Jingsj CID: J-1955858-1
Molecular Formula: C₁₅H₂₄
Molecular Weight: 204.35100 g/mol
Category: Aliphatic Hydrocarbons
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	74°C (lit.)
Boiling Point	248.5ºC at 760mmHg
Density	0.939g/cm3
Flash Point	105.1ºC
Exact Mass	204.18800
LogP	4.27090
Refractive Index	n20/D 1.490

Activity & Biological Data

Additional Information	[1]. Alfonso I, et, al. Role of α-copaene in the susceptibility of olive fruits to Bactrocera oleae (Rossi). J Agric Food Chem. 2014 Dec 10;62(49):11976-9.

Frequently Asked Questions

What is the CAS number of α-Copaene?

The CAS number of α-Copaene is 3856-25-5.

What are the molecular formula and molecular weight of α-Copaene?

α-Copaene has molecular formula C15H24 and molecular weight 204.35100 g/mol.

Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.

Last updated: 8/21/2026

How to cite: Jingsj. "α-Copaene (CAS 3856-25-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1955858-1 (accessed 2026-11-07).

Data for reference only; verify product details with suppliers before purchase.