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 BDD-237 2,3,7-Tribromodibenzo-p-dioxin, 1.2ml x 50ug/ml, toluene Price on request 675777 Norflurazon, 100 µg/ml, Ethyl acetate, 5ml Price on request 55191 SDWA Anions Price on request