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 9249.15-100-DRIED Alternariol methyl ether, 100µg/mL, Solvent-dried down, Unit 1mL, # of units-1, Cas.no. 26894-49-5 Price on request 20054 CLP Semi-Vol - System Monitoring Cmpds Soln #2 Price on request 71109 4-Hydroxy-4-methyl-2-pentanone Price on request