Total Kjeldahl Nitrogen as N Back Catalog number: 54011 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 8997.21-100-ME 11-Deoxycortisol, 100µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 152-58-9 Price on request 2272.4-2K-ME Ethyl ether, 2000µg/mL, Solvent-Methanol, Unit 1mL, # of units-1, Cas.no. 60-29-7 Price on request 98537 Hydrocarbon Standard Price on request