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CAS NO:21016-19-3
CAS:
21016-19-3
英文名称:
8-[5-(6,7-dihydro-6-methyl-2,4-diphenyl-5h-1-benzopyran-8-yl)-1-benzopyryliu
4-pentadienylidene]-5,6,7,8-tetrahydro-6-methyl-2,4-diphenyl- perchlorate
1-benzopyrylium,
