CAS Registry Number

CAS 121-34-6 — Vanillic acid (4-Hydroxy-3-methoxybenzoic acid)

Vanillic acid (4-hydroxy-3-methoxybenzoic acid) is a naturally occurring phenolic compound derived from vanilla beans, widely used as a flavoring agent, antioxidant, and intermediate in pharmaceuticals, cosmetics, and food preservation. It exhibits antimicrobial properties and is commonly employed in fragrance formulations and as a research chemical. This chemical has a CAS number of 121-34-6, molecular formula HOC6H3(OCH3)CO2H, and a molecular weight of 168.15 g/mol. It is stable at ambient storage conditions but requires handling with caution, as indicated by its "Warning" signal word. Molekula supplies vanillic acid from research to bulk quantities with full documentation and ISO 9001:2015 traceability.