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 92487 Phenol Standard Price on request 2483.10-100-AN Dinoterb Price on request 9854.16 Flunitrazepam-d3, , Solvent-, Unit , # of units-, Cas.no. 219533-64-9 Price on request