Ingredient Dictionary

BENZYL ACETONE

4-phenylbutan-2-one is a ketone.

Definition

4-phenylbutan-2-one is a ketone.

Source: PubChem

US FDA substance register · UNII UZM5QH16YW · registered name 4-Phenyl-2-butanone · single chemical substance

Source: US FDA Unique Ingredient Identifier (UNII)

Cosmetic roles

Gives the product a scentPERFUMING

Safety & regulatory references

Not classified under Korea’s toxic-substance GHS list · existing chemical substance

Source: Korea toxic substances GHS register (NIER)

More data — names, identifiers, properties, test records, literature

Names & identifiers

BENZYL ACETONEINCI2-Butanone, 4-phenyl-Synonym

CAS No.chemical registry number: 2550-26-7
EC No.EU chemical inventory number: 219-847-4
DTXSIDUS EPA chemical ID: DTXSID6033241
DTXCIDUS EPA compound ID: DTXCID4013241

IUPAC: 4-Phenylbutan-2-one
Molecular formula: C10H12O
Molecular weight: 148.205 g/mol

Measured properties

Appearance: Dry Powder, Liquid · Clear colorless liquid, [Aldrich MSDS]
Melting/freezing point: -13 ℃(760.00 mm Hg)
Initial boiling point and range: 233.5 ℃(760㎜Hg::02)
Flash point: 98.3 ℃
Vapour pressure: 0.0651 ㎜Hg (25°C)
Water solubility: 1625 g/㎖
Relative density: 0.989
n-Octanol/water partition coefficient (Kow): 1.96 ()
Molecular weight: 148.2

Values measured on the substance itself. The KOSHA data are a reference for writing and reviewing safety data sheets, not a specification for a commercial raw material.

Source: PubChem · KOSHA safety data sheets (Korea)

What products actually use it for

What the 13 products reported to the US EPA with this ingredient use it for. Products outside cosmetics are included, so the top few rows are its main uses.

Fragrance12
Flavouring and nutrient1

Source: US EPA CompTox dashboard

Irritation and sensitisation studies

3 skin studies and 2 eye studies are on record.

Classed as low4

The study conclusions largely agree (100%). These tests are on the raw material itself; irritation at the amount in a finished product is a different question.

See all 5 studies

Studies Indicate No Significant Irritation
skin irritation: in vivo · Screening · OECD Guideline 404 (Acute Dermal Irritation / Corrosion) equivalent or similar to
Not likely to be sensitizing
skin sensitisation: in vivo (LLNA) · Screening · according to OECD Guideline 429 (Skin Sensitisation: Local Lymph Node Assay)
Category 6.3A (Category 2)
Skin Irritation · Read Across
Studies Indicate No Significant Irritation
eye irritation: in vivo · Screening · OECD Guideline 405 (Acute Eye Irritation / Corrosion) according to
Category 6.4A (Category 2A)
Eye Irritation · Read Across