L-(+)-Ascorbic acid, certified, 0.25g Back Catalog number: C10303000 Availability: In the manufacturer's stock Price on request - + Recommended 53042 Calibration Standard Set Price on request 677642 Diethylamine, 1ml Price on request 1703.10-K-AN 4-(N-Methyl-N-nitrosamino)-1-(3-pyridyl)-1-butanone, 1000µg/mL, Solvent-acetonitrile, Unit 1mL, # of units-1, Cas.no. 64091-91-4 Price on request