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CH1012
CARBONYL COMPOUNDS II
Carboxylic acids: two words R1-C(=O)OH
1) long-alkyl root = R1-CO      suffix -oic acid
e.g CH3COOH    Þ         ethanoic acid

Carboxylic Acid Derivatives.

Esters: two words R1-C(=O)OR2 
1) alkyl side chain = R2 
2) long-alkyl root = R1-CO            suffix -oate
e.g CH3COOCH3    Þ        methyl ethanoate