发明人林芳,孙丽萍,徐明华. "Method for the Synthesis of 9-Ethylcarbazole-3-carboxaldehydeN-Benzyl-N-phenylhydrazone" [P]. 中国发明专利, 专利号 CN 117641213 A, 授权公告日 2016-10-03.
发明人黄志刚,杨光,赵玉洁. "A Process for Preparing High-Purity 9-Ethylcarbazole-3-carboxaldehydeN-Benzyl-N-phenylhydrazone" [P]. 中国发明专利, 专利号 CN 117786424 B, 授权公告日 2017-08-07.
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