2,2’,3,4’,5,5’,6-Heptachlorobiphenyl (187) Back Catalog number: 66187 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 50029 Metals Mix #2 Price on request P838285 Propyl Paraben, 10g Price on request X9142 3-Nitroaniline Price on request