4,4’-Diamino-3,3’-dimethyldiphenylmethane Back Catalog number: 98529 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 15217.21-K-AN (S)-Hexahydrocannabinol, 1000μg/ml in Acetonitrile, 1ml Price on request 30085 EPA Method 507/525 Analytes Mix #4 Price on request 0265.20-200-T Benzo[k]fluoranthene, 200µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 207-08-9 Price on request