2,8-Dichlorodibenzo-p-dioxin, 1.2ml x 50ug/ml, nonane Back Catalog number: DD-28-S Manufacturer: Wellington Laboratories Availability: 1 week Price on request - + Recommended M4H187 2,2',3,4',5,5',6-Heptachloro-4-[13C12]biphenylol, 1.2ml x 50ug/ml, toluene Price on request 94239 PCB Congeners Standard Price on request 66077 PCB No. 77, 100µg/ml in Isooctane, 1ml Price on request