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Acta Cryst. (2008). C64, o149-o154 [ doi:10.1107/S0108270108003557 ]
-stacked hydrogen-bonded chains and hydrogen-bonded chains of edge-fused ringsFormula: C9H10N4O2S, C9H10N4O3, C9H10N4O2S and C8H7ClN4OS
Online 9 February 2008
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