13C3-Caffeine, 100 µg/ml, Methanol, 1ml Back Catalog number: 681491 Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended 0297.19-10-AN 6-Methylchrysene, 10µg/mL, Solvent-acetonitrile, Unit 1mL, # of units-1, Cas.no. 1705-85-7 Price on request DF-246-S 2,4,6-Trichlorodibenzofuran, 1.2ml x 50ug/ml, nonane Price on request 675357 D10-Diazinon, 100 µg/ml, Acetonitrile, 1ml Price on request