Nitrite (NO2-) as N Back Catalog number: 54559 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended C11780000 Curcumin, certified, 0.25g Price on request C15970100 Pentachlorophenol 13C6, certified, 10mg Price on request M4M61 2,3,4,5-Tetrachloro-4'-methoxy[13C12]biphenyl, 1.2ml x 50ug/ml, toluene Price on request