| 201747-21-9 | (2E)-2-[(4,9-dimethoxy-5-oxo-5H-furo[3,2-g]chromen-7-yl)methylidene]-N-ethylhydrazinecarbothioamide | C17H17 N3 O5 S |
| 201747-25-3 | 3-{[(E)-(4,9-dimethoxy-5-oxo-5H-furo[3,2-g]chromen-7-yl)methylidene]amino}-2-thioxoimidazolidin-4-one | C17H13 N3 O6 S |