4,4’-Diamino-3,3’-dimethyldiphenylmethane Back Catalog number: 98529 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 95452 PCB Congeners & Hexachlorobenzene Mix #3 Price on request C17465500 Thiencarbazone-methyl, 100mg Price on request 0977.27-25MG d2 C27 ??? (20R)-Cholestane,neat,neat,25mg Price on request