| 英文名称: | | 7h-(1)benzopyrano(4,3-b)(1)benzopyran-6-one, 7-(2-oxopropyl)-6 | | 7-(2-oxopropyl)-6h,7h-(1)benzopyrano(4,3-b)(1)benzopyran-6-one | | 7-acetonyl-6-oxo-6h,7h-1-benzopyrano(4,3-b)-1-benzopyran | | 7h-(1)benzopyrano(4,3-b)(1)benzopyran-6-one,7-(2-oxopropyl)-6 |
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