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 30754 2,4-Dichlorophenol Price on request 53034 Calibration Standard Mix 2 Price on request 3189.20-K-AN Ethyl stearate Price on request