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The structure of the title natural product, 1′,5-di­hydroxy-3′,7-di­methyl-2,2′-bi­naphthalene-1,4,5′,8′-tetrone, C22H14O6, confirms the atomic connectivity postulated on the basis of spectroscopic data. The geometric parameters are normal and the angle between the planes of the two ring systems is 59.74 (2)°. The crystal packing is influenced by O—H…O hydrogen bonds, and possible short C—H…O and – stacking interactions.
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Document Type: Research Article

Publication date: 2004-06-01

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