certified reference material, in methanol (varied conc.), ampule of 1 mL
Synonym(s): Methylenediphenyl diisocyanate dibutylamine-d9; p-MDI; polymeric-MDI
Components: 4,4'-MDI monomer-di-n-butylamine-d9; 2,4'-MDI-monomer-di-n-butylamine-d9; MDI-trimer-di-n-butylamine-d9; MDI-tetramers-di-n-butylamine-d9