The odour of acetic acid resembles vinegar.
Acetic acid has the formula CH3COOH and is an organic compound. It’s a carboxylic acid with a methyl functional group linked to a carboxyl functional group. Vinegar is an acetic acid solution in water that contains between 5% and 20% ethanoic acid by volume. Acetic acid, which is found in it, gives it a pungent odour and a sour taste.