| 英文名称: | | 2h-1-benzopyran-3-carboxylic acid, 6-nitro-2-oxo-, morpholinoethyl ester, hydro | | 6-nitro-2-oxo-2h-1-benzopyran-3-carboxylic acid morpholinoethyl ester hydroch | | 2h-1-benzopyran-3-carboxylic acid, 6-nitro-2-oxo-,morpholinoethyl ester, hydrochloride |
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