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Figure 1
Sphere models of the crystal structures of (a) 7-chloro-4-oxo-4H-chromene-3-carbaldehyde (Ishikawa, 2014bBB5), (b) 8-chloro-4-oxo-4H-chromene-3-carbaldehyde (Ishikawa, 2014aBB4), (c) 6,8-di­chloro-4-oxochromene-3-carbaldehyde (Ishikawa & Motohashi, 2013BB6) and (d) the title compound.

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ISSN: 2056-9890
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