2,2',3,3',4,4',6-Heptachlorobiphenyl (171) Back Catalog number: 63171 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended X9122 Isodrin Price on request 24023 EPA Method 8260 Internal & Surrogate Standard Price on request 59594 ICP-MS Mix #1 Price on request