发明人高志强,郑宇鹏,李文辉. "Method for the Synthesis of 2,3-Dimethyl-5-phenylbenzo[d]oxazol-3-ium methyl sulfate" [P]. 中国发明专利, 专利号 CN 115315753 A, 授权公告日 2022-09-11.
发明人朱建伟,陈志强,韩伟. "A Process for Preparing High-Purity 2,3-Dimethyl-5-phenylbenzo[d]oxazol-3-ium methyl sulfate" [P]. 中国发明专利, 专利号 CN 114074403 A, 授权公告日 2020-08-14.
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