While investigating a theory relating performance of pure explosive molecules to their chemical structures, anomalies were encountered with a compound described by Blanksmaa as pentanitrophenylmethylnitramine (I), which he obtained by nitration of a crude sample of 3, 5-dinitrodimethylaniline. This structure had been assigned on the basis of nitrogen analysis alone. Repetition of the preparation of this substance by treating pure 3, ...