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acetic acid (ethanoic acid; vinegar acid; methanecarboxylic acid)

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acetic acid (ethanoic acid; vinegar acid; methanecarboxylic acid)
acetic acid  Say it  Common Compound Library 
(CH3COOH, HC2H3O2). A simple organic acid that gives vinegar its characteristic odor and flavor. Glacial acetic acid is pure acetic acid.