Common Names Many aliphatic acids have historical names. Positions of substituents on the chain are labeled with Greek letters. -C-C-C-C一C-C OH 8 Ph CI O CH:CH2CH2CHCH2COOH CH3CH2CHC-OH β-phenylcaproic acid a-chlorobutyric acid Chapter 20 3 =>Chapter 20 3 Common Names • Many aliphatic acids have historical names. • Positions of substituents on the chain are labeled with Greek letters. CH3 CH2 CHC Cl OH O -chlorobutyric acid CH3 CH2 CH2 CHCH2 COOH Ph -phenylcaproic acid =>