EPA Method 537 Analyte Primary Dilution Standard, 2000ng/ml in MeOH, 1,2ml Back Catalog number: EPA-537PDSL-R1 Availability: In the manufacturer's stock Price on request - + Recommended C14125010 Heptanal-2,4-dinitrophenylhydrazone, 100mg Price on request 673903 Azoxystrobin Metabolite R402173, 10.0 µg/ml, Acet Price on request 674760 Thiamphenicol, 100mg Price on request