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The two tautomers of the title compound, C11H12N4O, form the asymmetric unit of the crystal structure as independent molecules. They form two independent chains via N—H...N hydrogen bonds and the chains are crosslinked by weak C—H...O contacts.

Supporting information

cif

Crystallographic Information File (CIF)
Contains datablocks I, global

sft

Structure factor file (SHELXL table format)
Supplementary material

CCDC reference: 128140

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