4,4’-Diamino-3,3’-dimethyldiphenylmethane Back Catalog number: 71378 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 1720.13-K-IO 2-n-Propylnaphthalene, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 2027-19-2 Price on request 93887 EPA Method 8260 Volatiles Price on request 95291 DWSD Phenols Price on request