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 674523 PSA-GCB-Mix for 2007.01 per AOAC Price on request 674435 Caffeoylputrescine hydrochloride, 10mg Price on request 11978.21-10MG Propafenone hydrochloride,neat,neat,10mg, Price on request