4,4’-Diamino-3,3’-dimethyldiphenylmethane Back Catalog number: 98529 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended MDF-1278-1 1,2,7,8-Tetrachloro[13C12]dibenzofuran, 1.2ml x 1ug/ml, nonane Price on request 82410 EPA Method 8240A Matrix Spiking Standard Price on request 675717 Chlormephos, 10.0 µg/ml, Ethyl acetate, 10ml Price on request