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 14937.10-K-AN Disulfiram, 1000µg/ml in Acetonitrile, 1ml Price on request VHG-DSLFD-2PW-100 2% (w/w) Devol. Diesel Fuel in 75 cSt Hydrocarbon Oil, 100ml Price on request 50594 Copper - 20 PPM Price on request