2,2',3,3',4,5,6'-Heptachlorobiphenyl (174) Back Catalog number: 63174 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 683570 2-Nitroanisole, 1000mg Price on request 59964X Calibration Std. #1 Price on request 1818.10-1G 4-Cyclohexylbutyric acid, neat, Solvent-neat, Unit 1g, # of units-1, Cas.no. 4441-63-8 Price on request