2,2',3,4,4',5-Hexachlorobiphenyl (137) Back Catalog number: 66137 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 677913 Fluchloralin, 100 µg/ml, Ethyl acetate, 1ml Price on request 679123 D8-Toluene, 2000 µg/ml, Methanol, 1ml Price on request 72650 2-Azacyclotridecanone Price on request