Nitrite (NO2-) as N Back Catalog number: 54559 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended DD-123789-S 1,2,3,7,8,9-Hexachlorodibenzo-p-dioxin , 1.2ml x 50ug/ml, nonane Price on request 11365.6-10MG N-Nitroso-4-(2-hydroxyethyl)-piperazin-2-one,neat,neat,10mg, Price on request 92531 Benzo(b)fluoranthene Price on request