C,C′-[Methylenebis(2,6-dimethyl-4,1-phenylene)] dicyanate101657-77-6100 % similar 4,4′-Methylenebis(2,6-dimethylaniline)4073-98-742 % similar 4,4′-Diamino-3,3′-dimethyldiphenylmethane838-88-034 % similar