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 XA17303000AL Terbuthylazine-desethyl, 100µg/mL in Acetonitrile, 1ml Price on request 70555 Bioallethrin (d-trans Allethrin) Price on request 680184 Hexogen, 100 µg/ml, Acetonitrile, 1ml Price on request