Ingredient Dictionary

ISOBUTYL PROPIONATE

2-Methylpropyl propanoate is a carboxylic ester.

Definition

2-Methylpropyl propanoate is a carboxylic ester.

Source: PubChem

US FDA substance register · UNII 8Q382JSY9T · registered name ISOBUTYL 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

ISOBUTYL PROPIONATEINCIPropanoic acid, 2-methylpropyl esterSynonym

CAS No.chemical registry number: 540-42-1
EC No.EU chemical inventory number: 208-746-0
DTXSIDUS EPA chemical ID: DTXSID8060240
DTXCIDUS EPA compound ID: DTXCID0041565

IUPAC: 2-Methylpropyl propanoate
Molecular formula: C7H14O2
Molecular weight: 130.187 g/mol

Measured properties

Appearance: liquid
Colour: colourless
Melting/freezing point: -71 ℃
Initial boiling point and range: 66 ℃
Flash point: 25 ℃
Vapour pressure: 6.47 ㎜Hg (at 25℃)
Water solubility: 1700 ㎎/ℓ (at 25℃)
Relative density: 0.86
Molecular weight: 130.18

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: 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.

Fragrance3
Flavouring and nutrient2
Intermediate1

Source: US EPA CompTox dashboard

Related literature

RIFM fragrance ingredient safety assessment, isobutyl propionate, CAS Registry Number 540-42-1. · 2019