1-Hydroxy-2,3,4,7-tetramethoxy-9H-xanthen-9-one;1-Hydroxy-2,3,4,7-tetramethoxyxanthone;9H-Xanthen-9-one, 1-hydroxy-2,3,4,7-tetramethoxy-;Xanthen-9-one, 1-hydroxy-2,3,4,7-tetramethoxy-
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