Mass-Labelled PCDD/PCDF Solution/Mixture, 1.2ml, nonane Back Catalog number: DF-LCS-C40 Manufacturer: Wellington Laboratories Availability: 1 week Price on request - + Recommended 66211 Group 1a PCB’s - Aroclor Toxicity Price on request 1376.4-5ML 1-Butanol, neat, Solvent-neat, Unit 5mL, # of units-1, Cas.no. 71-36-3 Price on request 71222 1,2,4,5-Tetramethylbenzene Price on request