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1137686 
Journal Article 
N '-[4-(diethylamino)benzylidene]pyrazine-2-carbohydrazide dihydrate 
Shi, XF; Xing, ZY 
2007 
Yes 
Acta Crystallographica. Section E: Structure Reports Online
ISSN: 1600-5368 
WILEY-BLACKWELL 
HOBOKEN 
63 
O4723-U5189 
WOS:000251282300476 
The title compound, C16H19N5O center dot 2H(2)O, was synthesized by the reaction of pyrazine-2-carbohydrazide with 4-(diethylamino) benzaldehyde in methanol. The molecule is nearly planar, with a dihedral angle of 11.95 (3)degrees between the pyrazine and benzene rings. The C -C -N -N torsion angles are 3.43 (3) and 4.46 (3)degrees. Molecules are linked by O-H center dot center dot center dot O and O-H center dot center dot center dot N hydrogen bonds involving all the potential donors. The pyrazine rings and the phenyl rings show weak face-to-face pi-pi stacking interactions. 
• Methanol (Non-Cancer)
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