发明人陈志强,沈红梅,孙丽萍. "Method for the Synthesis of 2-Amino-5-((4-amino-3-sulfophenyl)(4-imino-3-sulfocyclohexa-2,5-dien-1-ylidene)methyl)-3-methylbenzenesulfonic acid" [P]. 中国发明专利, 专利号 CN 117222658 B, 授权公告日 2018-05-01.
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