2,3,3',4'-Tetrachlorobiphenyl (56) Back Catalog number: 63056 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 9333.13-100-IO ß-Ionone, 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 79-77-6 Price on request 79167 Heptachlor Price on request 676152 D5-Fenpropathrin, 100 µg/ml, Ethyl acetate, 1ml Price on request