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 3774.8-K-IO 2-Ethyl-3,5-dimethylpyrazine, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-, Cas.no. 13925-07-0 Price on request M2555 Metoprolol Tartrate, >98%, 5g Price on request 71174 Polyethylene glycol Price on request