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 R-099S 1,8-Dinitropyrene, 100μg/ml in Toluene, 1ml Price on request 59147 AA Mix Stock 1 Price on request 674063 Coumaphos, 100 µg/ml, Acetonitrile, 1ml Price on request