Ingredient Dictionary

ISOAMYL PROPIONATE

Isoamyl propanoate is a propanoate ester of isoamylol.

Definition

Isoamyl propanoate is a propanoate ester of isoamylol. It has a role as a metabolite. It is functionally related to an isoamylol.

Source: PubChem

US FDA substance register · UNII 2A8739M82Z · registered name ISOAMYL PROPIONATE · 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

ISOAMYL PROPIONATEINCI1-Butanol, 3-methyl-, propanoateSynonym

CAS No.chemical registry number: 105-68-0
EC No.EU chemical inventory number: 203-322-1
DTXSIDUS EPA chemical ID: DTXSID5047613
DTXCIDUS EPA compound ID: DTXCID3027613

IUPAC: 3-Methylbutyl propanoate
Molecular formula: C8H16O2
Molecular weight: 144.214 g/mol

Measured properties

Appearance: Colourless liquid with a fruity, apricot, pineapple-like odour · liquid
Boiling point: 159.00 to 161.00 °C. @ 760.00 mm Hg · 160 °C
Solubility: Soluble in ethanol and most fixed oils, insoluble in glycerol, propylene glycol and water · 1ml in 3ml 70% ethanol (in ethanol)
Density: 0.866-0.871
Melting/freezing point: -43.92 ℃(est.)
Initial boiling point and range: 160.2 ℃
Flash point: 41 ℃
Vapour pressure: 2.4 ㎜Hg(at 25 C)
Water solubility: 194.505 ㎎/ℓ
Relative density: 0.8584 (at 20 C)
n-Octanol/water partition coefficient (Kow): 2.760
Viscosity: 1096 mPa S
Molecular weight: 144.21

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 6 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.

Fragrance4
Flavouring and nutrient2

Source: US EPA CompTox dashboard

Irritation and sensitisation studies

4 skin studies and 1 eye studies are on record.

Classed as low5

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

Not likely to be sensitizing
skin sensitisation: in vivo (non-LLNA) · Screening · according to other guideline: as mentioned below
Not likely to be sensitizing
skin sensitisation · Screening · according to other guideline: as mentioned below
Studies Indicate No Significant Irritation
skin irritation: in vivo · Screening · other guideline: as mentioned below according to
Studies Indicate No Significant Irritation
skin irritation: in vivo · Screening · other guideline: aas per mentioned below according to
Studies Indicate No Significant Irritation
eye irritation: in vivo · Screening · other guideline: as mentioned below according to