Nitrite (NO2-) as N Back Catalog number: 54504 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended RPC-103AS 2,2,3,4,5,6,6-Heptachlorobiphenyl,188 37,55 € 59401 ICP Mix #3 Price on request 1673.9-K-IO 1,2,8,9-Tetrachlorononane, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 865306-20-3 Price on request