Nitrite (NO2-) as N Back Catalog number: 50449 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 2578.28-0.1MG Diindeno[4,3,2,1-cdef;1',2',3'-hi]chrysene,neat,neat,ca. 0.1mg, Price on request RPC-066AS 2,2,6,6-Tetrachlorobiphenyl (BZ-54) 37,32 € 0483.16-200-T Benzo[b]naphtho[1,2-d]thiophene, 200µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 205-43-6 Price on request