| 摘要 |
Disclosed is a chitosan derivative having a high optical resolving power. Specifically disclosed is a chitosan derivative represented by the following general formula (I). (I) (In the formula, R1 represents an optionally substituted aliphatic or aromatic group having 1-30 carbon atoms; R2 represents a substituent derived from an isocyanic acid derivative, carboxylic acid, ester, acid halide, acid amide compound, halogen compound, aldehyde or alcohol; and n represents an integer not less than 5.)
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