25-Hydroxyvitamin D3-[d3], 50μg/ml, 1ml Back Catalog number: S4163-0.05 Availability: In the manufacturer's stock Price on request - + Recommended DF-IS-C40 Mass-Labelled PCDD/PCDF Internal Standard Solution, 1.2ml, nonane Price on request 0310.17-200-T Benz[c]acridine, 200µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 225-51-4 Price on request 38338 CWA PAHs - 610 Price on request