Nitrate & Nitrite as N Back Catalog number: 50454 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 50607 AAS Mix Price on request 3137.12-K-IO Dodecanoic acid (Lauric), 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 143-07-7 Price on request 1844.14-1G 4-n-Heptylbenzoic acid, neat, Solvent-neat, Unit 1g, # of units-1, Cas.no. 38350-87-7 Price on request