Trimethylaminohydroxypropyl chitin as well as intermediate and development method thereof

The invention discloses a development method for trimethylaminohydroxypropyl chitin. The method is as follows: introducing an epoxy side chain on 6-O of chitin by epoxy bromopropane, and opening ring by using trimethylamine to realize modification on chitin. The trimethylaminohydroxypropyl chitin disclosed by the invention can improve solubility of a chitin derivative, belongs to a biodegradable material while being used as the chitin derivative, and does not cause accumulation in a body, and therefore, biological safety is very good.