发明人高志强,罗永刚,周伟. "Method for the Synthesis of N-Acetyl-S-(2-hydroxyethyl)-DL-cysteine" [P]. 中国发明专利, 专利号 CN 113375492 B, 授权公告日 2020-06-09.
发明人杨光,张德明,王建平. "A Process for Preparing High-Purity N-Acetyl-S-(2-hydroxyethyl)-DL-cysteine" [P]. 中国发明专利, 专利号 CN 113734975 B, 授权公告日 2020-02-09.
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