2,2',3,3',4',5,6-Heptachlorobiphenyl (177) Back Catalog number: 66177 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 50320 ICP-MS Mix #1 Price on request 19794 EPA Method 524 & 624 - Internal Standard Price on request XA20950009CY PAH-Mix 9, 100µg/ml in Cyclohexane, 1ml Price on request