13C3-Caffeine, 10mg Back Catalog number: 680424 Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended M7PFUDA Perfluoro-n-[1,2,3,4,5,6,7-13C7]undecanoic acid, 50µg/ml in MeOH, 1,2ml Price on request 1851.15-100MG 2-Anthracenecarboxylic acid, neat, Solvent-neat, Unit 100mg, # of units-1, Cas.no. 613-08-1 Price on request 92387 EPA Method 8141 Surrogate Standard Price on request