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Figure 3 Sphere models of the crystal structures of 6,8-di­chloro-4-oxo-4H-chromene-3-carbaldehyde (top left), 6,8-di­bromo-4-oxo-4H-chromene-3-carbaldehyde (top right), 6-chloro-4-oxo-4H-chromene-3-carbaldehyde (bottom left), and the title compound (bottom right).

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ISSN: 2056-9890
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