CAS Registry Number

CAS 2124-55-2 — Indole-4-carboxylic acid

Indole-4-carboxylic acid is a heterocyclic aromatic compound featuring an indole core with a carboxylic acid substituent at the fourth position. It is primarily used as a synthetic intermediate in pharmaceuticals, agrochemicals, and organic synthesis, particularly in the preparation of biologically active compounds and fluorescent dyes. This product has a CAS number of 2124-55-2, with the molecular formula C9H7NO2 and a molecular weight of 161.16 g/mol. It is stable under ambient storage conditions and carries no signal word for hazard classification. Molekula supplies Indole-4-carboxylic acid from research to bulk quantities with full documentation and ISO 9001:2015 traceability.