5-[bis(3-carboxy-4-hydroxy-5-methylphenyl)methylidene]-3-methyl-6-oxocyclohexa-1,3-diene-1-carboxylic acid
5-[(3-Carboxy-2-hydroxy-5-methylphenyl)(3-carboxy-5-methyl-4-oxo-2,5-cyclohexadien-1-ylidene)methyl]-2-hydroxy-3-methylbenzoic acid
CAS: 3267-41-2
Molecular Formula: C25H20O9