“…For instance, at small pyrazole molecules, the type and position of the substituents, the solvent or the temperature of the reaction mixture, as well as the central atoms and their corresponding anions were changed. 8−11 With the title ligand, 4-acetyl-3-amino-5-methylpyrazole, compounds, 12,13 including the title compounds, 14,15 have already been prepared. However, more than ten years ago there was no the possibility to determine the crystal structure of the microcrystalline title compounds.…”