4,4’-Diamino-3,3’-dimethyldiphenylmethane Back Catalog number: 71378 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 673510 Chlorpropham, 100 µg/ml, Ethyl acetate, 5ml Price on request 71604 1-Chlorooctadecane Price on request 19162 EPA Method 525.2 - PAH Standard Price on request