Chemical Detail

Chemical Name3,3'-Dimethyldiphenylmethane-4,4'-diisocyanate
Synonym(s)1,1'-Methylenebis(4-isocyanato-3-methylbenzene) | 4,4'-Diisocyanato-3,3'-dimethyldiphenylmethane | 5,5'-Methylenebis(2-isocyanatotoluene) | Benzene, 1,1'-methylenebis(4-isocyanato-3-methyl- | Isocyanic acid, ester with di-o-toluenemethane | Isocyanic acid, methylenebis(2-methyl-p-phenylene) ester | NSC 84203 | Nacconate 310 | Toluene, 5,5'-methylenebis(2-isocyanato-
CASRN139-25-3
Category MemberN120: Diisocyantes
De minimis Limit %1
M,P/OU Threshould (lb)25,000/10,000
Listing TypeChemical category member
Effective Date1995-01-01
Chemical QualifierNo
MetalNo
Chemical of Special ConcernNo
Per- or Polyfluoroalkyl SubstanceNo
Structural image
Structural representation of 3,3'-Dimethyldiphenylmethane-4,4'-diisocyanate

Rulemaking Changes Affecting This Chemical

StatusEffective Reporting YearFR Proposed RuleFR Final Rule
Added to category199559 FR 1788 (1/12/1994)59 FR 61432 (11/30/1994)