Nitrate & Nitrite as N Back Catalog number: 54162 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 1321.29-50-IO 17 alpha(H),21ß(H)-30-Norhopane, 50µg/mL in Isooctane, 1ml Price on request 673908 Hexaflumuron, 10 µg/ml, Ethyl acetate, 10ml Price on request 2514.7-100MG 4-Hydroxybenzoic acid, neat, Solvent-neat, Unit 100mg, # of units-1, Cas.no. 99-96-7 Price on request