出典:Wikipedia
出典:『Wikipedia』 (2011/08/04 05:02 UTC 版)
Carboxylic acids (pronounced /ˌkɑrbɒkˈsɪlɪk .../) are organic acids characterized by the presence of at least one carboxyl group. The general formula of a carboxylic acid is R-COOH, where R is some monovalent functional group. A carboxyl group (or carboxy) is a functional group consisting of a carbonyl (RR'C=O) and a hydroxyl (R-O-H), which has the formula -C(=O)OH, usually written as -COOH or -CO2H.