US Patent 7453004 Process for preparing aloe-emodin
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Patent Inventor Names
Guido Di Napoli0
Stefano Carlino0
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Patent abstract
A process for preparing aloe-emodin from aloin by oxidizing aloin by treatment with an oxygen-containing gas in the presence of an acid. The aloe-emodin may be used for the production of rhein and diacerein by oxidizing aloe-emodin by treatment with a chromium-free oxidizing medium to obtain rhein and purifying the rhein obtained. The rhein may be acetylated to obtain diacerein.
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US Patent 07453004 Process for preparing aloe-emodin US Patent 7453004 Process for preparing aloe-emodin
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Patent Number
074530040
Patent Number
74530040
Edits on 5 Apr, 2023
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Patent Jurisdiction
Patent Number
074530040
Date of Patent
November 18, 2008
0Patent Application Number
116670870
Date Filed
November 11, 2005
0Official Website
Patent Primary Examiner
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US Patent 07453004 Process for preparing aloe-emodin
Infobox
Is a
Patent jurisdiction
Patent number
07453004
Date of patent
November 18, 2008
Patent application number
11667087
Date Filed
November 11, 2005
Patent primary examiner
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