flavanol
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flavanol ??
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flavanol C??? ??, ??, ??
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A derivative of flavanone; yellow needles melting at 169C, has violet fluorescence in concentrated sulfuric acid. It is a flavonoid pigment. Dyes cotton a bright yellow when mordanted with aluminum hydroxide. Other hydroxyflavones are chrysin, fisetin, anflavanol ?? ?? ? ???
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flavanol ?? ??
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