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 93981 Bromoacetic acid Price on request 59317 Phenol Price on request 8542.22-K-ME Tallow trimethyl ammonium chloride Price on request