Uzoukwu, B.A. et al.: Crystal structure of 1-(4-propanoyl-2,4-dihydro-5-methyl-2-phenyl-3H- pyrazol-3-oneimine) 2-aminobenzene, C19H20N4O, and of 1-(4-butanoyl- 2,4-dihydro-5-methyl-2-phenyI-3H-pyrazol-3-oneimine) 2-aminobenzene, C20H22N4O. In: Zeitschrift für Kristallographie - New Crystal Structures 216 (2001), S. 251-254. DOI:
https://doi.org/10.1524/ncrs.2001.216.14.261