4,4’-Diamino-3,3’-dimethyldiphenylmethane Back Catalog number: 71378 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 92452 Chlorinated Pesticide Mix B Price on request 9352.10-K-ME L-Nicotine,1000 µg/mL,MeOH,1mL Price on request DF-LCS-A200 Mass-Labelled PCDD/PCDF Solution/Mixture , 1.2ml , nonane Price on request