5-Hydroxy-3-methyl-2,4-dioxoimidazolidine-1-carbaldehyde
5-Hydroxy-3-methyl-2,4-dioxoimidazolidine-1-carbaldehyde ??
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5-Hydroxy-3-methyl-2,4-dioxoimidazolidine-1-carbaldehyde C??? ??, ??, ??
5-Hydroxy-3-methyl-2,4-dioxoimidazolidine-1-carbaldehyde ?? ?? ? ???
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5-Hydroxy-3-methyl-2,4-dioxoimidazolidine-1-carbaldehyde ?? ??
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