13C3-Caffeine, 10mg Back Catalog number: 680424 Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended 93874 L-(+)-Ribose Price on request MBP-138 2,2',3,4,4',5'-Hexachloro[13C12]biphenyl, 1.2ml x 50ug/ml, nonane Price on request 8802.6-50-ME 1H,1,H,2H,2,H-Perfluorohexan-1-ol (2-Perfluorobutyl ethanol), 50µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 2043-47-2 Price on request