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Impurities and reference standards

Phenylacetone

Also known as 1-phenylpropan-2-one, 1-Phenyl-2-propanone, Benzyl methyl ketone

CAS 103-79-7Formula C9H10OMolar mass 134.18 g/molEC 203-144-4
GHS signal word: Warning Controlled, licensed buyers only
Request as a licensed buyer Safety data
Phenylacetone chemical structure, C9H10O, CAS 103-79-7
2D chemical structure

Key facts

What buyers check first

All properties
Appearance
Liquid
Melting point
-15.3 °C
Boiling point
214 °C
Density
1.0157 g/m cu at 20 °C
Solubility
Very soluble in ethanol, diethyl ether, miscible in benzene, xylene, soluble in chloroform
HS code
291431
Category
Impurities and reference standards

What is Phenylacetone?

Plain description, key identifiers and synonyms

Phenylacetone is a propanone that is propan-2-one substituted by a phenyl group at position 1. It is a member of propanones and a methyl ketone.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
1-phenylpropan-2-one
CAS number
103-79-7 CAS number cross-checkedOther or deprecated CAS: 136675-26-8
EC number
203-144-4
Molecular formula
C9H10O
UNII
O7IZH10V9Y
InChIKey
QCCDLTOVEPVEJK-UHFFFAOYSA-N
InChI
InChI=1S/C9H10O/c1-8(10)7-9-5-3-2-4-6-9/h2-6H,7H2,1H3
SMILES (canonical and isomeric)
CC(=O)CC1=CC=CC=C1

Synonyms

  • 1-phenylpropan-2-one
  • 1-Phenyl-2-propanone
  • Benzyl methyl ketone
  • Methyl benzyl ketone
  • Phenyl-2-propanone
  • 3-Phenyl-2-propanone
  • 2-Propanone, 1-phenyl-
  • Phenylmethyl methyl ketone
  • 1-Phenylacetone
  • phenyl acetone
  • 1-phenyl-propan-2-one
  • phenylaceton
  • Phenylacetone, 99%
  • (phenyl)acetone
  • DEA No. 8501
  • methylbenzyl ketone
  • alpha-Phenylacetone
  • phenyl 2-propanone
  • 1-phenyl propanedione
  • 1-Phenylpropane-2-one
  • Benzyl methyl ketone (P2P)
  • ghl.PD_Mitscher_leg0.660
  • Phenylacetone, analytical standard
  • Amfetamine sulfate impurity b

Physical and chemical properties

Measured values and descriptors computed from the structure

Physical and chemical properties

Measured values, check the supplier specification for your grade

Appearance
Liquidexp.
Melting point
-15.3 °Cexp.
Boiling point
214 °Cexp.
Density
1.0157 g/m cu at 20 °Cexp.
Solubility
Very soluble in ethanol, diethyl ether, miscible in benzene, xylene, soluble in chloroformexp.

Values vary by grade. Ask suppliers for the COA or TDS of the batch you buy.

Computed descriptors

Calculated from the structure, useful for screening and formulation

Molecular weight
134.18 g/molcalc.
Exact mass
134.0732 Dacalc.
LogP (octanol/water)
1.82calc.
Topological polar surface area
17.07 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
1calc.
Rotatable bonds
2calc.
Heavy atoms
10calc.
Rings
1calc.
Aromatic rings
1calc.
Fraction sp3 carbons
0.22calc.
Formal charge
0calc.
Stereocentres
0calc.
Lipinski rule of five
Passes (0 violations)calc.

Calculated for screening. Confirm critical figures with the supplier.

Murcko scaffold

The ring system that remains when every side chain is removed

Murcko scaffold of this chemical, c1ccccc1

c1ccccc1

1 ring, 6 atoms, the Benzene ring system.

485,677 other chemicals share this scaffold

Safety and hazards

GHS classification summary, not a safety data sheet

GHS signal word
Warning

Hazard statements

  • H227Combustible liquid.
Precautionary statements (5)
  • P210Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking.
  • P280Wear protective gloves, protective clothing, eye protection and face protection.
  • P370 + P378In case of fire: Use appropriate media to extinguish.
  • P403Store in a well-ventilated place.
  • P501Dispose of contents and container in accordance with local regulations.

GHS classification summary, not a safety data sheet (SDS). Classifications can differ by supplier, grade and concentration. Always check the supplier's SDS.

Full safety data and first aid

Phenylacetone suppliers

Controlled substance, listings of documented suppliers only, in the documented ranking

Drug precursor

Phenylacetone is controlled. Only documented suppliers can list it, and buyers must upload a valid licence with their request. Every request is reviewed before suppliers see it.

Licensed buyers only, every enquiry is reviewed by our compliance team.

Reference: UN Convention against Illicit Traffic 1988 Table I, India NDPS controlled substance, HS 2022 subheading 2914.31 (phenylacetone)

Our policy on controlled substances
No documented supplier lists it yet

Licensed buyers can post a request for Phenylacetone with their licence. Our compliance team reviews it before suppliers see it.

Request as a licensed buyer

Phenylacetone price

Indicative price range per kg from live supplier offers

No published prices right now

Suppliers quote this chemical on request. Send one free request and compare quotes side by side.

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Uses and applications

What the substance is used for, by industry and function

Phenylacetone (DEA Code Number: 8501) is a Schedule II controlled substance.

Schedule II Controlled Substance: (A) The drug or other substance has a high potential for abuse, (B) The drug or other substance has a currently accepted medical use in treatment in the United States or a currently accepted medical use with severe restrictions, and (C) Abuse of the drug or other substances may lead to severe psychological or physical dependence.

Synthesis of pharmaceuticals.

In organic synthesis, production of benzyl radicals by photolysis.

The quality and quantity of illicit methamphetamine has recently increased due to introduction of a new precursor, 1-phenyl-2-propanone (P2P). ...

Functional uses

  • Flavouring and nutrient

How it is made

1-Phenyl-2-propanone is produced by catalytic ketonization of phenylacetic acid with acetic acid over an alumina-supported cerium oxide catalyst at 400-500 °C. It may also be produced by the rearrangement of phenylpropylene oxide on zeolites or oxidation of 2-phenylpropanol.

Regulatory status

Inventories, regulations and trade controls that list this substance

Drug precursor

Phenylacetone is controlled. Only documented suppliers can list it, and buyers must upload a valid licence with their request. Every request is reviewed before suppliers see it.

Licensed buyers only, every enquiry is reviewed by our compliance team.

Reference: UN Convention against Illicit Traffic 1988 Table I, India NDPS controlled substance, HS 2022 subheading 2914.31 (phenylacetone)

Our policy on controlled substances

Controls

  • US DEA controlled substance or listed chemical
  • Drug precursor (UN 1988 Convention)

United States

  • TSCA inventory (USA)
    Status: Active in US commerce

HS code and trade data

Customs classification and reported world trade statistics

Global trade

World import and export statistics for the HS code Phenylacetone is traded under.

HS 2914.31Exact HS code

Phenylacetone (phenylpropan-2-one)

World exports in 2024
$3.82M
+1.7% vs 2023, imports $5.13M
2019 to 2024
Top exporters
  1. India * partner reported96.5%
  2. Spain3.0%
  3. Germany0.3%
Top importers
  1. United States65.8%
  2. Spain22.7%
  3. Italy5.8%

* Partner reported figures, a lower bound.

Reported customs values in USD, not prices.Full trade data

The HS code shown for Phenylacetone is indicative (it was matched by name in the HS nomenclature). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about Phenylacetone, based on the data on this page

What is Phenylacetone?

Phenylacetone is a propanone that is propan-2-one substituted by a phenyl group at position 1. It is a member of propanones and a methyl ketone.

What is the CAS number of Phenylacetone?

The CAS registry number of Phenylacetone is 103-79-7. Other or deprecated CAS numbers: 136675-26-8.

What is the molecular formula and weight of Phenylacetone?

The molecular formula of Phenylacetone is C9H10O and its molar mass is 134.18 g/mol.

What is Phenylacetone used for?

Phenylacetone (DEA Code Number: 8501) is a Schedule II controlled substance. Schedule II Controlled Substance: (A) The drug or other substance has a high potential for abuse, (B) The drug or other substance has a currently accepted medical use in treatment in the United States or a currently accepted medical use with…

Is Phenylacetone hazardous?

Phenylacetone carries the GHS signal word "Warning". Main hazards: combustible liquid. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of Phenylacetone?

Phenylacetone is usually classified under HS code 291431 (Phenylacetone (phenylpropan-2-one)). This is indicative, confirm it with your customs broker before shipping.

Can I buy Phenylacetone on CompoundList?

Phenylacetone is a controlled substance. Only documented suppliers can list it, and buyers must upload a valid licence with their request. Every request is reviewed by our compliance team before suppliers see it.

Guides for buyers

Practical guides that help when you source, ship or handle Phenylacetone

Request as a licensed buyer

Upload your licence with the request. Our compliance team reviews it before the documented suppliers see it.
Request as a licensed buyer
Data last updated 7 Oct 2026. Details may have changed, please confirm them with the supplier. Report an error on this page
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