CAS Registry Number

CAS 88-13-1 — Thiophene-3-carboxylic acid

Thiophene-3-carboxylic acid is an organic heterocyclic compound featuring a thiophene ring with a carboxylic acid substituent, primarily used as a synthetic intermediate in pharmaceuticals, agrochemicals, and organic synthesis. It serves as a key building block for APIs, dyes, and specialty polymers. This chemical has a CAS number of 88-13-1, molecular formula C5H4O2S, and a molecular weight of 128.15 g/mol. It is stored at ambient conditions and carries a signal word of "Warning" for safety classification. Molekula supplies Thiophene-3-carboxylic acid from research to bulk quantities with full documentation and ISO 9001:2015 traceability.