The most common is to begin numbering the carbons from the carboxylic acid functional ... are converted into a 20-carbon fatty acid containing 4 carbon-carbon double bonds. This omega-6 fatty ...
(A) This is the structure of stearic acid, an 18-carbon saturated fatty acid. The normal numbering system, starting with the carboxylic acid, is shown in blue. The carbons and oxygens of the ...