Gun Shot Residue Single Element Kit Back Catalog number: 52257 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 681516 Cycloxydim Metabolite BH 517-5-OH-TGSO2, 100 µg/ml Price on request 79173 Trifluralin Price on request 8831-K-IO Natural alkyl pyrazines, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-, Cas.no. Price on request