Phenylacetone is an organic chemical compound from the group of monosubstituted benzene derivatives and ketones. In many countries, this chemical requires a permit.
Systematic name
1-Phenylpropan-2-one
Other names, synonyms
Phenyl-2-propanone; Benzyl methyl ketone; Phenyl-2-propanone; 3-Phenyl-2-propanone; Phenylmethyl methyl ketone; 1-Phenylacetone; Phenylacetone; 1-Phenyl-2-propanone
Molecular formula and structural formula of Phenylacetone:
C9H10O
Mr = 134.178 g/mol
1-Phenylpropan-2-one
SMILES: CC(=O)CC1=CC=CC=C1
In its pure form, phenylacetone is a colorless to pale yellow, oily liquid with a strong, characteristic odor.
Calculated NMR spectrum (Predict Spectra via NMRDB)
1H NMR Spektrum, 13C NMR Spektrum.
Mass-related elemental composition and isotope proportions of the compound Phenylacetone - C9H10O - calculated based on molecular mass.
*) The third column lists the atomic masses or isotope masses of the elements involved and - in square brackets - the natural isotope composition.
The molar mass is M = 134.178 grams per mole.
The amount of substance in one kilogram of the substance is n = 7.453 mol.
The amount of substance in one gram of the substance is n = 0.007 mol.
Monoisotopic mass: 134.073164941 Da - related to 12C91H1016O.
(General information without guarantee of accuracy and completeness! The information does not replace the chemical safety data sheet or a risk assessment, but rather provides a general overview of the risk posed by the hazardous substance.
Signal word: Warning
GHS hazard statements (H phrases):
Labeling in the EU: See ECHA Substance Infocard 100.002.859.
For toxicology and occupational safety when handling Phenylacetone as well as measures to be taken in case of danger, see: Hazardous Substances Information System GESTIS, ZVG-Nr. 492653.
The table below lists producers and suppliers of Phenylacetone as a commercial chemical for laboratories, research, industry and production with the corresponding contact details.
[0] - Specialist and research articles in scientific journals via PubMed: Phenylacetone.
Last update: 2026-02-11
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