What is isobutyric acid? What role does isobutyric acid play in lipids?

[alias]2-methylpropionic acid, dimethylacetic acid. ［molecular formula］c4h8o2 ［structural formula］(ch3)2chcooh [properties]isobutyric acid is a colorless oily liquid with a pungent odor similar to butyric acid. relative density 0.949 (20℃), melting point 47℃, boiling point 152-155℃, flash point (closed cup) 76.67℃, refractive index 1.3930 (20℃). <easily soluble in water, miscible with ethanol, ether, chloroform, etc. free isobutyric acid…