Ingredient Dictionary

METHYL METHYLBUTYRATE

Methyl (S)-2-Methylbutanoate is a fatty acid ester.

Definition

Methyl (S)-2-Methylbutanoate is a fatty acid ester.

Source: PubChem

US FDA substance register · UNII OLG4D4939V · registered name METHYL 2-METHYLBUTYRATE · 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

METHYL METHYLBUTYRATEINCIButanoic acid, 2-methyl-, methyl esterSynonym

CAS No.chemical registry number: 868-57-5
EC No.EU chemical inventory number: 212-778-0
DTXSIDUS EPA chemical ID: DTXSID1052587
DTXCIDUS EPA compound ID: DTXCID2031160

IUPAC: Methyl 2-methylbutanoate
Molecular formula: C6H12O2
Molecular weight: 116.16 g/mol

Measured properties

Appearance: almost colourless liquid/sweet, fruity, apple-like odour · liquid
Boiling point: 115 °C
Solubility: soluble in alcohol, most fixed oils, insoluble in water · (in ethanol)
Density: 0.879-0.883
Melting/freezing point: -68.43 ℃(EST)
Initial boiling point and range: 115 ℃
Flash point: 32 ℃
Vapour pressure: 22.5 ㎜Hg (EST at 25 deg C)
Water solubility: 3172 ㎎/ℓ (EST at 25 deg C)
Relative density: 0.88
n-Octanol/water partition coefficient (Kow): 1.77 (EST)
Molecular weight: 116.16

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 5 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

Source: US EPA CompTox dashboard