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PROCESS FOR PRODUCING VITAMIN D3 AND PREVITAMIN D3
PROCESS FOR PRODUCING VITAMIN D3 AND PREVITAMIN D3
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机译:维生素D3和维生素D3的生产过程
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摘要
A process for the production of vitamin D3 or previtamin D3 from an isomer mixture comprises carrying out a separation by column chromatography using supercritical or liquid carbon dioxide, optionally with a modifier, as the mobile phase and an optionally modified silica gel as the stationary phase.
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