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 71578 2,4-Dinitrophenol-PFB derivative Price on request 83849 Emodin 8-glucoside, >90%, 10mg Price on request 32005 EPA Method 502/524 Fortification Solution Price on request