A new liquid base with the composition C10H19ON has been isolated from the epigeal part of N. schoberi and has been called nitramine. The dehydrogenation of nitramine with Pd/C gave 8-methylquinoline. On the basis of a study of the UV, IR, NMR, and mass spectra of nitramine and its derivatives, the structure of 7-hydroxy-8-methyldecahydroquinoline has been established for it. © 1975, Plenum Publishing Corporation. All rights reserved.