13C3-Caffeine, 10mg Back Catalog number: 680424 Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended 683611 D4-Prochloraz desimidazole-amino BTS44595, 100 µg/ Price on request 0420.17-150-CYX5 n-Heptadecane, ?13C: - 25.72, 150µg/mL, Solvent-cyclohexane, Unit 1mL, # of units-5, Cas.no. 629-78-7 Price on request C17138000 Tartrazine, certified, 0.25g Price on request