3-Ethoxy propionaldehyde diethyl acetal, 1g Back Catalog number: NG-16493-1G Availability: In the manufacturer's stock Price on request - + Recommended DF-IS-C200 Mass-Labelled PCDD/PCDF Internal Standard Solution, 1.2ml, nonane Price on request KBIO-EBGP-15ML Pure ß-Glucuronidase from overexpressing recombinant E. coli ,>50,000 u/ml,50% aqueous glycerol soln,5mL Price on request C15987122 Perfluorooctane sulfonic acid potassium salt, 100mg Price on request