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 70294 Trichlorofluoromethane, 1000µg/ml in MeOH, 1ml Price on request 79289 trans-Chlordane Price on request 11908.20-100MG Fluorescein (free acid),neat,neat,100mg, Price on request