Nitrite (NO2-) as N Back Catalog number: 50627 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended MBP-194 2,2',3,3',4,4',5,5'-Octachloro[13C12]biphenyl, 50.0µg/mL in Nonane/10% toluene, 1,2ml Price on request 52015 Calibration Standard Mix 7 Price on request C16270000 Pirimiphos-methyl, certified, 0.25g Price on request