Mass-Labelled PCB Solution , 1.2ml x 20ng/ml, nonane Back Catalog number: PCB-SS-A20 Manufacturer: Wellington Laboratories Availability: 1 week Price on request - + Recommended 9400.19-K-ME Doxepin hydrochloride (cis+trans) Price on request 11786.10 1,2,3,5,7,8-Hexachloronaphthalene,,,, Price on request 677342 Nonafluoro-1-butanesulfonic acid, 50 µg/ml, Metha Price on request