英文名称: | 1-((4,9-dimethoxy-5h-furo(3,2-g)(1)benzopyran-5-on-7-yl)methylene)thiose mica | rbazone | 2-((4,9-dimethoxy-5-oxo-5h-furo(3,2-g)(1)benzopyran-7-yl)methylene)hydra zine | 2-((4,9-dimethoxy-5-oxo-5h-furo(3,2-g)(1)benzopyran-7-yl)methylene)-hydrazinecarbothioamid |
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