Alcohol Tox Screen Back Catalog number: 96632 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 673525 Chlorpyrifos, 10.0 µg/ml, Ethyl acetate, 10ml Price on request 1489.22-10UG Pyrenyl-1-O-glucuronide, neat, Solvent-neat, Unit ca. 10µg , # of units-1, Cas.no. 15417-05-2 Price on request 679880 Benzidine, 100 µg/ml, Acetonitrile, 1ml Price on request