3,3'-Biphenyldiol,4,4'-diamino- (8CI);m,m'-Biphenol, 6,6'-diamino- (7CI);3,3'-Dihydroxy-4,4'-diaminobiphenyl;3,3'-Dihydroxybenzidine;HAB (diol);[1,1'-Biphenyl]-4,4'-diamine, 3,3'-dihydroxy-;
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