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 55082 WS-SDWA Silica as SiO2 Price on request 79663 Pyrene Price on request 1570.34-100-ME Pseudomorphine (free base), 100µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 125-24-6 Price on request