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 3395.13-100 Ethalfluralin, 100µg/mL, Solvent-c.hexane or ac.nitrile, Unit 1mL, # of units-1, Cas.no. 55283-68-6 Price on request A13669500AL-100 Fluazifop-P (free acid), 100µg/mL in Acetonitrile, 1ml Price on request 8113.10-100-AN Methylvinylketone 2,4-dinitrophenylhydrazone, 100µg/mL, Solvent-acetonitrile, Unit 1mL, # of units-1, Cas.no. 2675-19-6 Price on request