Nitrite as NO2- Back Catalog number: 50738 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 672980 Trimethoprim, 250mg Price on request N-12159-250MG Hexachlorobenzene, 250mg Price on request 2686.16-K-IO 2,2,4,4,6,8,8-Heptamethylnonane, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 4390-04-9 Price on request