4,4'-Diaminobiphenyl-d8 (Rings-d8) Back Catalog number: 10448.12-K-IO Manufacturer: CHIRON AS Availability: 3 weeks Price on request - + Recommended 2918.8-100-IO Atrazine-d5 (ethyl-d5), 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 163165-75-1 Price on request 50639 Turbidity (100 NTU) Price on request 98653 PAH Standard (20 ppm) Price on request