Isolation and identification of emodin (
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Leonard Buchalter
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Article
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1969
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John Wiley and Sons
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English
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The anthraquiiione pigment, emodin, has been isolated and its presence positively verified from a nonpolar extract of the dried, ground tubers of Rumex hyrnenosepalus. Isolation was accomplished by preparative TLC on silica gel layers. Identification was made by visible, IR, NMR spectroscopy and TLC