| 英文名称: | | 2h-1-benzopyran-2-one, 3-((((2,4-dichlorophenyl)azo)(2-hydroxyphenyl)methylene) | | 3-((((2,4-dichlorophenyl)azo)(2-hydroxyphenyl)methylene)amino)-2h-1-benz opyr | | an-2-one | | 3-((((2,4-dichlorophenyl)azo)(2-hydroxyphenyl)methylene)amino)-2h-1-benzopyran-2-on |
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