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Figure 1
Sphere models of the crystal structures of (a) 7-chloro-4-oxo-4H-chromene-3-carbaldehyde (Ishikawa, 2014b ), (b) 8-chloro-4-oxo-4H-chromene-3-carbaldehyde (Ishikawa, 2014a ), (c) 6,8-dichloro-4-oxochromene-3-carbaldehyde (Ishikawa & Motohashi, 2013 ) and (d) the title compound. |


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