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 RPC-074AS 2,2,3,3,4,4,5,6-Octachlorobiphenyl 39,56 € 676276 Bupirimate, 10.0 µg/ml, Acetonitrile, 10ml Price on request CA10535000 Benzene, certified, 5ml Price on request