13C3-Caffeine, 10mg Back Catalog number: 680424 Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended 673228 Chloridazon, 10.0 µg/ml, Acetonitrile, 10ml Price on request 676397 2,4-Dichlorotoluene, 250mg Price on request 677354 Fluorene, 10 µg/ml, Cyclohexane, 10ml Price on request