Mass-Labelled PCB Solution/Mixture , 1.2ml, nonane Back Catalog number: PCB-IS-B Manufacturer: Wellington Laboratories Availability: 1 week Price on request - + Recommended 32531 p-Xylene Price on request 9321.14-5MG Diclofenac-d4 (phenyl-d4),neat,neat,5mg Price on request 1854.10-K-IO n-Butylbenzene-d14, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 65087-59-4 Price on request