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2-Methyl-2-pentenoic acid

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2-Methyl-2-pentenoic acid molecular structure
Molecular structure

The Sigma-Aldrich catalog lists 4 grades and pack sizes of 2-Methyl-2-pentenoic acid (CAS 16957-70-3). Pick the code you need and request a quote for price and lead time from Klar Chem.

CAS16957-70-3
Molecular formulaC6H10O2
Molecular weight114.14 g/mol
IUPAC name(E)-2-methylpent-2-enoic acid
Synonymstrans-2-Methyl-2-pentenoic acid · (E)-2-methylpent-2-enoic acid · (E)-2-methyl-2-pentenoic acid · (2E)-2-methylpent-2-enoic acid · (S)-2-Methylpentenoic acid · FEMA No. 3195
Safety & Hazards (GHS) Danger
Corrosive Corrosive
  • H314 Causes severe skin burns and eye damage
  • H318 Causes serious eye damage

⚠️ For information only (source: EU CLP harmonised classification and ECHA notifications, via PubChem); not a substitute for the official Safety Data Sheet (SDS).

Catalog codes and grades

Brand Product / grade Code
Sigma TRANS-2-METHYL-2-PENTENOIC ACID, 97% 264776-25G Request Quote
Sigma TRANS-2-METHYL-2-PENTENOIC ACID, >=98% W319503-100G
W319503-1KG
W319503-SAMPLE		 Request Quote

For information only; specifications and availability are confirmed at quotation. Prices are not listed.