13C3-Caffeine, 10mg Back Catalog number: 680424 Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended 1740.10-K-IO 5,6-Dihydrodicyclopentadiene, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 4488-57-7 Price on request 11347.18-100MG Hydroxychloroquine sulfate,neat,neat,100mg, Price on request 2944.14-100-IO Ethyl viologen-d8 dichloride (rings-d8), 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. Unlabelled 3688-18-4 Price on request