C5H10O2
102.13 g/mol
Flavor & FragranceDanger
2-Methylbutanoic acid
CAS116-53-0EC204-145-2
Category
Flavor & Fragrance
Compound Class
Organic Acid
Primary Use
Flavor and fragrance ingredient
2-Methylbutanoic acid is a branched-chain fatty acid naturally produced as a metabolite in bacteria and humans, notably derived from the amino acid leucine during nutrient starvation. It is a methylbutyric acid with a 2-methyl substituent on the butyric acid backbone and functions as both a bacterial and human metabolite.
Content scope: Information here supports chemical identification and industrial supply, research, and manufacturing contexts. It is not a therapeutic claim, medical advice, or drug-use instructions.
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Related Compounds
Safety Reference
Danger
H302Harmful if swallowed
H312Harmful in contact with skin
H314Causes severe skin burns and eye damage
H318Causes serious eye damage
H290May be corrosive to metals
Customs Tariff Classification
The international HS code for 2-Methylbutanoic acid (CAS 116-53-0) is 2915.60.
HS code (international, 6-digit)
2915.60
EU CN code (8-digit)
2915 60 90
Classification per the EU customs inventory ECICS (2026-07 snapshot, HS 2022). National tariff lines and product form can affect the final classification.
Identifiers
IUPAC Name
2-methylbutanoic acid
InChIKey
WLAMNBDJUVNPJU-UHFFFAOYSA-N
SMILES
CCC(C)C(=O)O
Synonyms (40)
- (1)-2-Methylbutyric acid
- (RS)-2-methyl-butyric acid
- 2-Ethylpropionate
- 2-Ethylpropionic acid
- 2-METHYLBUTANOIC ACID (DL)
- 2-METHYLBUTYRIC ACID
- 2-METHYLBUTYRIC ACID, DL-
- 2-Methybutyric acid
- 2-Methyl Butyrate
- 2-Methylbutanoic acid
- 2-Methylbutyric acid (VAN)
- Active valeric acid
- Butanoic acid, 2-methyl-
- Butanoic acid, methyl-
- Butyric acid, 2-methyl-
- Carbopol 974P
- D-2-Methyl Butyrate
- D-2-Methyl Butyric acid
- DL-.ALPHA.-METHYLBUTYRIC ACID
- DL-2-Methy Butyrate
- DL-2-Methy Butyric acid
- DL-2-Methylbutyric acid
- Ethylmethylacetate
- Ethylmethylacetic acid
- Methylbutyric acid
- Methylethylacetic acid
- Pokty(acrylic acid)
- Synthalen M; Acrypol 934
- Valeric acid, active
- alpha-Methylbutyric acid
- butane-2-carboxylic acid
- rac-2-methylbutanoic acid
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