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3-羟基-2-乙基-4-吡喃酮
perf.
ethyl maltol
;
3-hydroxy-2-ethyl-4-pyrone
3-羟基-2-乙基-4H-吡喃酮
perf.
3-ethyl-2-hydroxy-4H-pyran-4-one
;
ethyl veltol
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