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CAS 610-35-5 — 4-Hydroxyphthalic acid

4-Hydroxyphthalic acid is an organic compound featuring a hydroxyl group and two carboxylic acid functionalities on a phthalic acid backbone. It serves as an intermediate in the synthesis of pharmaceuticals, dyes, and plasticizers, particularly in the production of polyester resins and UV absorbers. This white crystalline solid has a CAS number of 610-35-5, a molecular formula of C8H6O5, and a molecular weight of 182.1302 g/mol. It is stable at ambient storage conditions and carries no signal word for hazard classification. Molekula supplies 4-Hydroxyphthalic acid from research to bulk quantities with full documentation and ISO 9001:2015 traceability.