Crystal structure of <i>N′<sup>2</sup> </i>,<i>N′<sup>6</sup> </i>-bis((<i>E</i>)-1-(pyrazin-2-yl)ethylidene)pyridine-2,6-dicarbohydrazide — methanol (1/2), C<sub>21</sub>H<sub>25</sub>N<sub>9</sub>O<sub>4</sub>
Zeitschrift für Kristallographie. New crystal structures/Zeitschrift für Kristallographie. New crystal structures