发明人林芳,冯建国,唐晓军. "Method for the Synthesis of 2-Ketobutyric acid-4-<SUP>13</SUP>C sodium salt hydrate" [P]. 中国发明专利, 专利号 CN 115013118 A, 授权公告日 2015-05-20.
发明人何建平,朱建伟,张德明. "A Process for Preparing High-Purity 2-Ketobutyric acid-4-<SUP>13</SUP>C sodium salt hydrate" [P]. 中国发明专利, 专利号 CN 116770132 A, 授权公告日 2022-04-12.
参考文献 Literature
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