Total Kjeldahl Nitrogen as N Back Catalog number: 50794 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 3900.10-1ML Eugenol, neat, Solvent-neat, Unit 1mL, # of units-1, Cas.no. 97-53-0 Price on request 98131 EPA Method 8141 Standard Rev 1 Price on request 3278.20-K-IO Methyl 7-cis-nonadecenoate , 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 146407-37-6 Price on request