单词	pentanoic acid
释义	pentanoic acid /ˌpɛntəˈnəʊɪk / noun [mass noun] Chemistry A colourless liquid fatty acid present in various plant oils, used in making perfumes. Chemical formula: CH3(CH2)3COOH. Pentanoic acid, or valeric acid, is also known for its odor and in fact is used for flavorings and perfumes. Origin 1920s: pentanoic from pentane.
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