4-Hydroxybenzoic acid

Description. 4-hydroxybenzoic acid is a monohydroxybenzoic acid that is benzoic acid carrying a hydroxy substituent at C-4 of the benzene ring. It has a role as a plant metabolite and an algal metabolite. It is a conjugate acid of a 4-hydroxybenzoate. Description: 4-hydroxybenzoic acid is a mono... Molecular Formula: C7H6O3 PubChem CID: 135 Molecular Weight: 138.12 g/mol