2-hexenyl cyclopentanyl acetate

2-hexenyl cyclopentanyl acetate is a synthetic organic compound classified as a fragrance agent. It appears as a clear liquid with a molecular formula of C₁₃H₂₂O₂ and delivers a fruity aroma characterized by jasmine and pear-like notes. This compound is also known by synonyms such as jasmonyl acetate and cyclopentanol, 2-(2-hexen-1-yl)-, 1-acetate. Its sensory qualities make it valuable in scent applications that require fresh, floral, and fruity nuances. The compound can be sourced through chemical synthesis processes designed to create esters which mimic natural jasmine-related odors. For detailed chemical information, it is linked to controlled vocabulary sources like PubChem Compound 6366719.

While 2-hexenyl cyclopentanyl acetate does not naturally occur in significant biological sources, it is a synthetic analog designed to replicate floral and fruity fragrance components found in jasmine and other blossoms. Its primary application lies within fragrance formulations, where it imparts fruity, jasmine-pear sensory notes. This compound is used to enhance complex scent blends in perfumes and personal care products, especially to add freshness and a subtle sweet floral character. Regulatory standards such as IFRA (Global) guide its safe use, permitting concentrations up to 4.0% in fragrance concentrates. It is not recommended for flavor use in food products.

2-hexenyl cyclopentanyl acetate exhibits physicochemical properties that influence its handling and formulation in fragrance products. It has a relatively high boiling point ranging from 284 to 285 °C at atmospheric pressure, indicating low volatility and good stability at ambient temperatures. The specific gravity at 25 °C is approximately 0.92 to 0.93, and its refractive index at 20 °C ranges between 1.45 and 1.6. The compound shows a low vapor pressure of 0.003 mmHg at 25 °C, suggesting limited evaporation rate, beneficial for lasting fragrance impact. Solubility is notable in alcohol solvents and limited but present in water at low concentrations (about 2.615 mg/L at 25 °C). Its estimated log P of around 4.57 indicates a lipophilic nature, impacting solubility and miscibility within formulations. The flash point of about 200 °C reduces flammability risks during typical handling.

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Safety information

European information :
Most important hazard(s):
None - None found.
S 02 - Keep out of the reach of children. S 24/25 - Avoid contact with skin and eyes. S 36 - Wear suitable protective clothing.
Hazards identification
Classification of the substance or mixture
GHS Classification in accordance with 29 CFR 1910 (OSHA HCS)
None found.
GHS Label elements, including precautionary statements
Pictogram
Hazard statement(s)
None found.
Precautionary statement(s)
None found.
Oral/Parenteral Toxicity:
Not determined
Dermal Toxicity:
Not determined
Inhalation Toxicity:
Not determined

Safety in use information

Category:
fragrance agents
RIFM Fragrance Material Safety Assessment: Search
IFRA Code of Practice Notification of the 49th Amendment to the IFRA Code of Practice
Recommendation for 2-hexenyl cyclopentanyl acetate usage levels up to:
	4.0000 % in the fragrance concentrate.
Recommendation for 2-hexenyl cyclopentanyl acetate flavor usage levels up to:
	not for flavor use.

Safety references

EPI System: View

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EPA Substance Registry Services (TSCA):149982-46-7

EPA ACToR:Toxicology Data

EPA Substance Registry Services (SRS):Registry

Laboratory Chemical Safety Summary :6366719

National Institute of Allergy and Infectious Diseases:Data

WGK Germany:2

[(E)-hex-2-enyl] 2-cyclopentylacetate

Chemidplus:0149982467