发明人高志强,陈志强,刘建华. "Method for the Synthesis of Ethyl 2-hydroxy-5-nitrobenzoate" [P]. 中国发明专利, 专利号 CN 114935716 B, 授权公告日 2024-05-05.
发明人马晓峰,钱学锋,罗永刚. "A Process for Preparing High-Purity Ethyl 2-hydroxy-5-nitrobenzoate" [P]. 中国发明专利, 专利号 CN 108302148 B, 授权公告日 2022-06-28.
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