2,2',3,4,4',5-Hexachlorobiphenyl (137) Back Catalog number: 66137 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended S-4063-100-TX5 16 EPA Priority PAHs, 100µg/ml in Toluene, 5 x 1ml Price on request H952702 1-Hydroxypyrene-d9, 1mg Price on request 71178 a,a,a-Trichlorotoluene Price on request