1,1'-Biphenyl, 4,4'-diisocyanato-3,3'-dimethyl- 3,3'-Bitolylene-4,4'-diisocyanate 3,3'-DIMETHYL-4,4'-BIPHENYLENE DIISOCYANATE 3,3'-Dimethyl-4,4'-biphenylene isocyanate 3,3'-Dimethyl-4,4'-biphenylylene diisocyanate 3,3'-Dimethyl-4,4'-diphenylene diisocyanate 3,3'-Dimethylbiphenyl 4,4'-diisocyanate 4,4'-Diisocyanato-3,3'-bitolyl 4,4'-Diisocyanato-3,3'-dimethylbiphenyl 91-97-4 Bitolylene diisocyanate Isocyanic acid, 3,3'-dimethyl-4,4'-biphenylene ester Isocyanic acid, 3,3'-dimethyl-4,4'-biphenylylene ester NSC9599 Nacconate 200 WLN: OCNR B1 DR C1 DNCO