2,2’,4,4’,6,6’-Hexachlorobiphenyl (155) Back Catalog number: 66155 Manufacturer: ABSOLUTE STANDARDS Availability: 3 weeks Price on request - + Recommended 66137 2,2',3,4,4',5-Hexachlorobiphenyl (137) Price on request 33941 1,4-Dichlorobenzene Price on request 12101.2-50MG MPPA,neat,neat,50mg, Price on request