Preformed azulene pigments ofLactarius indigo (Schw.) Fries (Russulaceae, Basidiomycetes)
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The structure of a new naturally-occurring azulene, 1-stearoyloxymethylene-4-methyl-7-isopropenylazulene, obtained from an acetone extract of the blue mushroomLactarius indigo, has been determined by chemical and spectral methods.
KeywordsAcetone Indigo Spectral Method Acetone Extract Azulene
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