12-keto Lithocholic Acid: A metabolite of DCA. CAS Number: 5130-29-0. Synonyms: 12-keto LCA, 12-keto Lithocholate, 12-KLCA, 12-oxo LCA, 12-oxo Lithocholate, 12-oxo Lithocholic Acid. Purity: ≥98%.