Gun Shot Residue Single Element Kit Back Catalog number: 52257 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 2907.10-10MG 3,4-Dihydro-6-methyl-2(1H)-quinolinone, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 20150-83-8 Price on request 8466.3-100-AN Ethylenethiourea Price on request 94916 Haloacetic Acid Methyl Esters Price on request