Isolation and solid-state characteristic
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Shan-Yang Lin
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Article
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1992
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John Wiley and Sons
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English
β 506 KB
A new polymorphic crystal form of indomethacin was precipitated from an aqueous solution of indomethacin and beta-cyclodextrin by titration with a 0.5 N HCl aqueous solution. Three polymorphs (alpha, beta, and gamma forms) and a new crystal form were differentiated with thermal analysis, infrared sp