All of the following are bile acids, EXCEPT:
The two principal (primary) bile acids formed in the liver are cholic acid and chenodeoxycholic acid. In the colon, bacteria conve cholic acid to deoxycholic acid and chenodeoxycholic acid to lithocholic acid. Since they are formed by bacterial action, deoxycholic acid and lithocholic acid are called secondary bile acids.
Lithocholic acid
Taurocholic acid
Deoxycholic acid
Chendeoxycholic acid