dehydrocholic acid

noun

de·​hy·​dro·​cho·​lic acid (ˌ)dē-ˌhī-drə-ˌkō-lik- 

: a colorless crystalline acid C₂₄H₃₄O₅ made by the oxidation of cholic acid and used often in the form of its sodium salt C₂₄H₃₃NaO₅ especially as a laxative and choleretic