4,4’-Diamino-3,3’-dimethyldiphenylmethane Back Catalog number: 71378 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 53100 ICP-MS Verification Standard #1 Price on request 63121 PCB No. 121, 1000μg/ml in Isooctane, 1ml Price on request 2159.11-K-T Pentamethylbenzene, 1000µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 700-12-9 Price on request