Nitrite (NO2-) as N Back Catalog number: 50449 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended MDF-123489 1,2,3,4,8,9-Hexachloro(13C12)dibenzofuran, 1.2mL x 50ug/mL, toluene Price on request 9757.20-100-IO n-Pentyl benzyl phthalate, 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 1240-18-2 Price on request 94759 Benzidine Price on request