Ingredient Dictionary

ALLYL BUTYRATE

Allyl butyrate is a fatty acid ester.

Definition

Allyl butyrate is a fatty acid ester.

Source: PubChem

US FDA substance register · UNII DH3T4NN0KO · registered name ALLYL BUTYRATE · single chemical substance

Source: US FDA Unique Ingredient Identifier (UNII)

Cosmetic roles

Gives the product a scentPERFUMING

Safety & regulatory references

Restricted: United Kingdom

Source: EU Cosmetics Regulation · MFDS (Korea) cosmetic regulatory information · UK cosmetics regulations (OPSS)

European Union

Other : Level of free allyl alcohol in the ester should be less than 0.1%

Source: MFDS (Korea) cosmetic regulatory information

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

Source: Korea toxic substances GHS register (NIER)

EU Cosmetics Regulation, Annex III (restricted substances), entry 135

Source: EU restricted substances (Annex III)

Restriction III/135 · Other restriction: ban substances that deplete the ozone layer

Source: EU CosIng ingredient list

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

Names & identifiers

ALLYL BUTYRATEINCI알릴부티레이트Korean label name (MFDS standard)Butanoic acid, 2-propenyl esterSynonym

CAS No.chemical registry number: 2051-78-7
EC No.EU chemical inventory number: 218-129-8
DTXSIDUS EPA chemical ID: DTXSID0047666
DTXCIDUS EPA compound ID: DTXCID8027666

IUPAC: Prop-2-en-1-yl butanoate
Molecular formula: C7H12O2
Molecular weight: 128.171 g/mol

Measured properties

Appearance: Liquid · Colourless liquid with a peach/apricot odour
Boiling point: 142.00 to 143.00 °C. @ 760.00 mm Hg · 44-45 °C (15mm Hg)
Melting point: -80 °C
Solubility: Insoluble in water and soluble in ethanol and oils · (in ethanol)
Density: 0.897-0.902
Colour: colourless
Melting/freezing point: -62.69 ℃
Initial boiling point and range: 142 ℃
Flash point: 41.67 ℃
Flammability (solid, gas): not flammable
Vapour pressure: 1.333 ㎪ (39.67℃)
Water solubility: 1233 ㎎/ℓ (25℃)
Vapour density: 0.9 g/㎤
n-Octanol/water partition coefficient (Kow): 2.2 (log Pow)

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 4 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.

Flavouring and nutrient2
Fragrance2

Source: US EPA CompTox dashboard

Irritation and sensitisation studies

4 skin studies and 1 eye studies are on record.

Classed as highly irritating2Classed as moderate1Classed as low3

The studies disagree (the most common conclusion covers 33%), so they do not establish that this ingredient is irritating. These tests are on the raw material itself; irritation at the amount in a finished product is a different question.

See all 5 studies

Skin corrosion/irritation - Category 2
Skin Irritation · Screening
Not likely to be sensitizing
skin sensitisation: in vivo (non-LLNA) · Screening · according to other guideline: as mentioned below
Severe Irritation
skin irritation: in vivo · Screening · other guideline: as mentioned below according to
Not likely to be sensitizing
skin sensitisation · Screening · according to other guideline: as mentioned below
Severe Irritation
eye irritation: in vivo · Screening · other guideline: as mentioned below according to