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 70009 Non-Halogenated Volatiles - MISA Price on request 95250 Aroclor CCV Mix Conc 1 Price on request 677588 Chlordecone alcohol, 10.0 µg/ml, Acetonitrile, 1 Price on request