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 94798 4-Bromochlorobenzene, 20mg/ml in MeOH, 1ml Price on request 92913 Chlorinated Anisoles Standard #1 Price on request 1875.10-K-ME n-Decane Price on request