Mass-Labelled PCB Solution, 1.2ml x 20ng/ml, nonane Back Catalog number: PCB-IS-A20 Manufacturer: Wellington Laboratories Availability: 1 week Price on request - + Recommended 673618 delta-HCH, 100 µg/ml, Ethyl acetate, 5ml Price on request 3339.5-100 Chlormephos, 100µg/mL, Solvent-c.hexane or ac.nitrile, Unit 1mL, # of units-1, Cas.no. 24934-91-6 Price on request 59119 Fluoride (F-) Price on request