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 90298 Naphthalene, 2000µg/mL in MeOH, 1ml Price on request 676701 D6-Isoproturon, 100 µg/ml, Acetone, 1ml Price on request 682542 Probenecid, 100mg Price on request