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 20006 CLP Semi-Volatile Base/Neutral Surrogate Std Price on request 676927 4-Aminoazobenzene, 250mg Price on request 72025 5-Nitro-o-anisidine Price on request