Gun Shot Residue Back Catalog number: 52326 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 2701.11-10MG Cimetidine hydrochloride, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 70059-30-2 Price on request 71036 2-Methyl-1,3-dioxolane Price on request 19394 EPA Method 8021B Internal Standard Price on request