2-Butanone (Methyl ethyl ketone)-DNPH Back Catalog number: 83542 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended MET-11013AM1-1ML Acetochlor ESA sodium salt, 100ug/ml in MeOH, 1ml Price on request DF-LCS-C40 Mass-Labelled PCDD/PCDF Solution/Mixture, 1.2ml, nonane Price on request 70591 Chlorophacinone Price on request