In short
Phenylethyl acetate is the acetate ester of phenylethyl alcohol. It brings a sweet, fruity-rosy and honeyed note.
What Phenylethyl Acetate smells like
Phenylethyl acetate smells of rose and honey with fruity nuances. Firmenich describes delicate rose, fruity and honey notes; suppliers describe sweet, rosy-floral with prominent honey and fruity-peach, or a hint of juicy raspberry or peach, and one natural grade lists honey, rosy, yeasty, cocoa and balsamic.
- Leading note
- Honeyed rose
- Supporting facets
- Peach, raspberry
- Faint facets
- Yeasty, balsamic
- Character
- Sweet, fruity, soft
What makes Phenylethyl Acetate distinctive
It is phenylethyl alcohol made fruity: the same honeyed rose, sweeter and with a peachy, berry-like fruitiness.
How Phenylethyl Acetate is used
Used in rose and fruity-floral compositions, and in fruit and honey flavours.
Typical role: blender (smooths the joins between other materials).
How Phenylethyl Acetate differs from similar materials
- Phenylethyl Alcohol
- The alcohol is milder and warmer; the acetate is sweeter and fruitier, with peach and berry.
- Phenylethyl Isobutyrate
- The isobutyrate is fruitier still, with pear, tea and wine nuances; the acetate is the simpler honeyed rose.
- Phenylethyl Phenylacetate
- Phenylethyl phenylacetate is heavier and lasts for days, a dried-rose honey base; the acetate is lighter, fruitier and more volatile.
- Phenylethyl Propionate
- Fraterworks finds the acetate a brighter, more volatile rose than phenylethyl propionate, which is warmer and fruity-honeyed. (compared directly by a cited source)
An asterisk marks a difference that a cited source states directly. The others compare the published descriptions of each material. Smell varies with grade, supplier and dilution; compare them side by side on blotters before substituting one for another.
Formulation considerations
Stable in most bases.
Identity and classification
- Type
- Aroma chemical
- Origin
- Occurs in nature
- Odour family
- Floral / Fruity
- Note position
- Top to heart note
- Physical form at room temperature
- Liquid
- CAS number
- 103-45-7
- Molecular formula
- C10H12O2
- Molecular weight
- 164.2 g/mol
- IUPAC name
- 2-phenylethyl acetate
The CAS number, formula and molecular weight are taken from PubChem compound 7654, 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 classify it (1,937 reports): H318 causes serious eye damage (79.9% of reports); H319 causes serious eye irritation (18.6% of reports). 5 of the reports find it does not meet the hazard criteria. 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
Phenylethyl Acetate is also suggested as a partner on the pages for Phenylethyl Isobutyrate and Phenylethyl Propionate.
Used in formulas and accords
Used in 9 published formulas
Phenylethyl Acetate is an ingredient in 2 perfume formulas, 6 accords and 1 base in the Formula & Accord Library.
Community formulas
RUŌOD House Originals
Original compositions by RUŌOD House.
Further reading
Questions about Phenylethyl Acetate
Is Phenylethyl Acetate natural or synthetic?
The molecule occurs in nature. Commercial Phenylethyl 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 Phenylethyl Acetate?
103-45-7. It was checked against PubChem on 19 October 2026.
Which published formulas use Phenylethyl Acetate?
Phenylethyl Acetate is used in 9 published formulas in the RUŌOD Lab Formula & Accord Library, including Banana Bread, Blackcurrant Signal and Dried Fruits Accord. Each is listed with a link under "Used in formulas and accords" on this page.
Sources
- PubChem — compound 7654, checked 19 October 2026.
- PubChem — GHS classification (the ECHA C&L Inventory notifications and any harmonised EU entry), read 26 October 2026.
- Wikipedia — Phenethyl acetate — published perfumery reference.
- The Good Scents Company — phenethyl acetate — odour database.
- Scentspiracy — Phenylethyl Acetate — distributor's description.
- Olfactory profile: the RUŌOD Lab team's synthesis of the published descriptions above, reviewed 20 October 2026. Evidence: several independent published descriptions, which agree. Classification and the short description: revision 1. Descriptions of odour are judgement, not measurement.






