In short
Styrallyl acetate is the key note of gardenia. It has a green, fruity and fresh floral character.
What Styrallyl Acetate smells like
Styrallyl acetate is a sharp, green, fruity-floral material with a distinctive rhubarb tartness. Supplier descriptions speak of the greenness of crushed leaves and the tart bitterness of rhubarb stalk; Moellhausen gives fresh, green, rhubarb, and Symrise describes it as strong, radiant, herbal-green-fruity and floral similar to gardenia, though not tenacious. Its two mirror-image forms differ, one leaning jasmine-gardenia and fruity, the other green and strawberry-like; perfumery uses the mixture.
- Leading note
- Green rhubarb
- Supporting facets
- Gardenia-like floral, fruity
- Faint facets
- Herbal
- Character
- Sharp, tart, green, radiant
What makes Styrallyl Acetate distinctive
Rhubarb. Few materials have its tart, green-stalk sourness, and it is the traditional green top note of gardenia accords — although a distributor points out that this is a perfumer's convention rather than a resemblance to the flower itself.
Where the descriptions disagree: Its gardenia character is the least consistent element across sources.
How Styrallyl Acetate is used
Used for a sharp green-fruity lift in floral and fresh compositions, and traditionally in gardenia accords. It is a top note and does not last long.
Typical role: modifier (used in small amounts to change the character of a blend).
How Styrallyl Acetate differs from similar materials
- Benzyl Acetate
- Benzyl acetate is the diffusive fruity-floral jasmine ester; styrallyl acetate is greener and tarter, with rhubarb, and gardenia-like.
Each difference compares the published descriptions of the two materials. Smell varies with grade, supplier and dilution; compare them side by side on blotters before substituting one for another.
Formulation considerations
Strong and diffusive.
Identity and classification
- Type
- Aroma chemical
- Origin
- Occurs in nature
- Odour family
- Green / Fruity
- Note position
- Top to heart note
- Physical form at room temperature
- Liquid
- Also known as
- 1-Phenylethyl acetate
- CAS number
- 93-92-5
- Molecular formula
- C10H12O2
- Molecular weight
- 164.2 g/mol
- IUPAC name
- 1-phenylethyl acetate
The CAS number, formula and molecular weight are taken from PubChem compound 62341, whose own record lists this CAS number; checked 19 October 2026.
Safety and compliance
Hazard classification of the neat substance, as PubChem summarises it, read 26 October 2026. Companies notifying the ECHA C&L Inventory report it as not meeting the GHS hazard criteria (1,775 of 1,775 reports). Unless it is harmonised, this is the notifiers' own classification, not a binding one.
This page is general information, not a safety assessment or a specification. Confirm identity, composition, IFRA status and allergen content from your supplier's documents for the lot you hold.
Materials it works with
-
gamma-Nonalactone (Aldehyde C-18)
Aroma chemical · Gourmand / Fruity — coconut, creamy, sweet, fatty
-
Jasmine Absolute (Grandiflorum)
Absolute · Floral / Animalic — jasmine, floral, indolic, fruity
-
cis-3-Hexenyl Acetate
Aroma chemical · Green / Fruity — green, fruity, unripe banana, fresh
Styrallyl Acetate is also suggested as a partner on the pages for Styrallyl Alcohol.
Used in formulas and accords
Used in 13 published formulas
Styrallyl Acetate is an ingredient in 4 perfume formulas, 8 accords and 1 base in the Formula & Accord Library.
Community formulas
RUŌOD House Originals
Original compositions by RUŌOD House.
Further reading
Questions about Styrallyl Acetate
Is Styrallyl Acetate natural or synthetic?
The molecule occurs in nature. Commercial Styrallyl Acetate may be made by synthesis or obtained from natural sources, so check the supplier's specification if the distinction matters to you.
What is the CAS number of Styrallyl Acetate?
93-92-5. It was checked against PubChem on 19 October 2026.
Which published formulas use Styrallyl Acetate?
Styrallyl Acetate is used in 13 published formulas in the RUŌOD Lab Formula & Accord Library, including Aperol Spritz Accord, Champagne Accord and Dried Fruits Accord. Each is listed with a link under "Used in formulas and accords" on this page.
Sources
- PubChem — compound 62341, checked 19 October 2026.
- PubChem — GHS classification (the ECHA C&L Inventory notifications and any harmonised EU entry), read 26 October 2026.
- The Good Scents Company — styrallyl acetate (with Moellhausen and Symrise descriptions) — odour database.
- De Hekserij — Styrallyl acetate — distributor's description.
- Scent.vn — Styrallyl acetate — distributor's description.
- Olfactory profile: the RUŌOD Lab team's synthesis of the published descriptions above, reviewed 21 October 2026. Evidence: more than one published description. Classification and the short description: revision 1. Descriptions of odour are judgement, not measurement.