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Patent transfer: extraction technology of 10-DAB CN103508984

The invention relates to a new extraction method of 10-DAB. This method combined the leaching extraction and macroporous resin adsorption technology. Leached by weak acid water and dissolved the related substance of 10-DAB. After resin adsorption, hydrazinolysis to get the oily substance. Added some acetonitrile, stirred, the solid product is crude 10-DAB.


 

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