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 C14034900 Glutaric acid-dimethyl ester, certified, 0.25g Price on request 677579 L-Isoleucine, 250mg Price on request 82493 EPA Method 1666Labeled Standard Price on request