[1,1′-Biphenyl]-3,3′-dicarboxylic acid, 6,6′-dihydroxy-5,5′-dimethoxy-
3,3′-Biphenyldicarboxylic acid, 6,6′-dihydroxy-5,5′-dimethoxy-
6,6′-Dihydroxy-5,5′-dimethoxy[1,1′-biphenyl]-3,3′-dicarboxylic acid
5,5′-Bivanillic acid
Dehydrodivanillic acid
2,2′-Dihydroxy-3,3′-dimethoxy-5,5′-dicarboxybiphenyl
Divanillic acid