bis(3-nitrophenoxycarbonylethyl)phosphinic acid
bis(3-nitrophenoxycarbonylethyl)phosphinic acid ??
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bis(3-nitrophenoxycarbonylethyl)phosphinic acid C??? ??, ??, ??
bis(3-nitrophenoxycarbonylethyl)phosphinic acid ?? ?? ? ???
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bis(3-nitrophenoxycarbonylethyl)phosphinic acid ?? ??
???( 0)?? ??
bis(3-nitrophenoxycarbonylethyl)phosphinic acid ?? ??:
