Gun Shot Residue Single Element Kit Back Catalog number: 52257 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended D533840 Dopamine 3-O-Sulfate, 5mg Price on request 94184 Organophosphorus Pesticides Price on request 9785.9-100-ME DL-2-Fluoroamphetamine hydrochloride, 100µg base/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. Price on request