3-BIPHENYLOL, 4-AMINO-4'-NITRO-, HYDROCHLORIDE 4'-Nitro-4-amino-3-hydroxydiphenyl hydrochloride 4'-Nitro-4-amino-3-hydroxydiphenyl hydrogen chloride 4-Amino-3-hydroxy-4'-nitrodiphenyl hydrochloride 4-Amino-4'-nitro-3-biphenylol hydrochloride 63019-81-8