5,6-Dihydroxycyclohexa-1,3-diene-1-carboxylic acid

2,3-dihydroxy-2,3-dihydrobenzoic acid is a cyclohexadienecarboxylic acid having the C=C bonds at the 1- and 3-positions, the carboxylic acid at the 1-position and two hydroxy substituents at the 5- and 6-positions. It is a cyclohexadienecarboxylic acid and an alpha,beta-unsaturated monocarboxylic acid. It is a conjugate acid of a 2,3-dihydroxy-2,3-dihydrobenzoate.