发明人马晓峰,刘建华,唐晓军. "Method for the Synthesis of NH-bis(PEG2-C2-acid)" [P]. 中国发明专利, 专利号 CN 116634057 A, 授权公告日 2021-10-26.
发明人韩伟,何建平,郭海燕. "A Process for Preparing High-Purity NH-bis(PEG2-C2-acid)" [P]. 中国发明专利, 专利号 CN 112776484 A, 授权公告日 2020-02-06.
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