Cis-3-Hexenyl Propionate, with CAS number 33467-74-2, is a synthetic aroma chemical known for its fresh, green, and fruity character, reminiscent of freshly cut grass and green apples. It is commonly used in perfumery to impart a natural, vibrant quality to fragrances, often found in green, fruity, and floral compositions. This ingredient typically sits in the top to middle notes of a formula, contributing to the overall freshness and brightness of the scent. In addition to its use in perfumes, cis-3-Hexenyl Propionate is also utilized in various personal care products and household fragrances. As with many synthetic aroma chemicals, it is important to consider safety and regulatory aspects; while specific IFRA restrictions may apply, it is generally regarded as safe for use in cosmetic formulations when used within established guidelines. However, as with any fragrance ingredient, it is advisable to conduct thorough safety assessments and consider potential allergenic responses in sensitive individuals. — AI-generated summary, 2026-09-02.
A fresh, natural green odor with a distinctly fruity undertone reminiscent of unripe pear and apple skin. Softer and slightly sweeter than cis-3-hexenyl acetate, with a rounded leafy character that reads as crushed foliage over sharp cut grass.AI · claude-opus-4-7
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Perfume and Flavor Chemicals, page 672.
Colorless liquid.
Almost insoluble in water, soluble in alcohol and propylene glycol, miscible with oils.
Sweet, powerful, intensely green, somewhat vegetable-like but also slightly fatty, oily odor.
The taste is not purely sweet or fruity, and it is pleasant only at very low level (below 2 ppm).
Suggested for use in perfume compositions, mainly as a modifier for the acetate, which tends to be overly fruity. However, since the propionate does not resemble any particular natural material, it seems to be less popular than most of the other esters.
Produced from cis-3-Hexenol and propionic acid by azeotropic esterification.