Chemical Detail

Chemical Name3,3'-Dimethyl-4,4'-diphenylene diisocyanate
Synonym(s)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'-Dimethylbiphenyl 4,4'-diisocyanate | 3,3'-Dimethylbiphenyl-4,4'-diyl diisocyanate | 4,4'-Diisocyanato-3,3'-bitolyl | 4,4'-Diisocyanato-3,3'-dimethyl-1,1'-biphenyl | 4,4'-Diisocyanato-3,3'-dimethylbiphenyl | Bitolylene diisocyanate | Isocyanic acid, 3,3'-dimethyl-4,4'-biphenylene ester | Nacconate 200
CASRN91-97-4
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'-Dimethyl-4,4'-diphenylene 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)