Gun Shot Residue Back Catalog number: 53326 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended ACQ-SE30-015 Ethanol standard in serum,3.0g/L,serum, 1.5mL Price on request 681255 D4-1H-Benzotriazole, 100 µg/ml, Methanol, 1ml Price on request 9417.17-10MG Venlafaxine hydrochloride,neat,neat,10mg Price on request