发明人林芳,何建平,张德明. "Method for the Synthesis of Piperazine Citrate Hydrate" [P]. 中国发明专利, 专利号 CN 109519564 B, 授权公告日 2023-01-17.
Kowalski A, Mueller T C, Nielsen H. "A Process for Preparing High-Purity Piperazine Citrate Hydrate" [P]. European Patent, EP 3912616 A1, 2022-12-27.
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