2,2',3,4',5,6,6'-Heptachlorobiphenyl (188) Back Catalog number: 63188 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 673067 Coumarin, 100mg Price on request 73479 3-Hydroxybutyric acid Price on request 673777 Dazomet, 100 µg/ml, Ethyl acetate, 5ml Price on request