L-PFOSK with branched isomers, 1.2ml x 50ug/ml, methanol Back Catalog number: BR-PFOSK Manufacturer: Wellington Laboratories Availability: 1 week Price on request - + Recommended DF-IS-F Mass-Labelled PCDF Internal Standard Solution, 1.2ml, nonane Price on request 57103 Lithium (Li) Price on request 79288 cis-Chlordane Price on request