The separation and purification of methylated CD

The industrial MCD is a mixture of different kinds of partly replaced methyl CD derivatives. The separation and purification process is relatively simple, and mainly aims at removing the salts and unreacted raw materials from the reaction solution. Salt is removed by ion exchange resin for several times. The un-reacted raw materials are usually neutralized by ammonia water or steamed [ 19]. 

For further investigation, the product needs to be purified via silica gel column with the buffer of chloroform/methanol (100 2). 

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