Synonyms: 4,4-Methylenebis(4-chloroaniline); 2,2-dichloro-4,4-methylenedianiline; ; 4,4-Methylene-Bis(Ortho-Chloroaniline); Bis-(4-Amino-2,3-dichlorophenyl)-methane; 4,4_-Methylen-bis-(2-chloranilin); 4,4'-Methylenebis-(2-chlroaniline); METHYLENE-BIS-ORTHOCHLOROANILINE; MOCA; 4,4'-Diamino-3,3'-dichlorodiphenylmethane; Sulfonating Agent MOCA