4-[4,5-Dihydro-4-[3-[5-hydroxy-3-methyl-1-(4-sulfophenyl)-1H-pyrazol-4-yl]-2-butenylidene]-3-methyl-5-oxo-1H-pyrazol-1-yl]-benzenesulfonic Acid Tripotassium Salt
Stevens L M, Yamamoto T, Park J H. "一种的合成方法" [P]. US Patent, US 11102410 B2, 2017-03-25.
发明人冯建国,何建平,杨光. "Method for the Synthesis of 4-[4,5-Dihydro-4-[3-[5-hydroxy-3-methyl-1-(4-sulfophenyl)-1H-pyrazol-4-yl]-2-butenylidene]-3-methyl-5-oxo-1H-pyrazol-1-yl]-benzenesulfonic Acid Tripotassium Salt" [P]. 中国发明专利, 专利号 CN 116847367 B, 授权公告日 2024-09-11.
Lefèvre J P, Mueller T C, Schröder R. "A Process for Preparing High-Purity 4-[4,5-Dihydro-4-[3-[5-hydroxy-3-methyl-1-(4-sulfophenyl)-1H-pyrazol-4-yl]-2-butenylidene]-3-methyl-5-oxo-1H-pyrazol-1-yl]-benzenesulfonic Acid Tripotassium Salt" [P]. European Patent, EP 3348523 A1, 2015-12-11.
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