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lactone 音标拼音: [l'ækton] 内酯; 乳酸干溜液 内酯; 乳酸干溜液 Lactone \Lac"tone\, n. (Chem.)
One of a series of organic compounds, being cyclic esters which may be regarded as anhydrides of certain hydroxy acids. In general, they are colorless liquids, having a weak aromatic odor. They are so called because the typical lactone is derived from lactic acid. [1913 Webster]
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