Nitrite (NO2-) as N Back Catalog number: 50120 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 1107.14-K-T 9-Nitroanthracene-d9, 1000µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 220381-38-4 Price on request 96626 Methadone/Methaqualone/Propoxyphene Price on request 682094 Flumioxazin Metabolite APF, 100 µg/ml, Acetone, Price on request