CFTR Inhibitor-172, Apotent, CFTR chloride channel blocker, Alternate Name/Synonyms: 4-[[4-Oxo-2-thioxo-3-[3-trifluoromethyl)phenyl]-5-thiazolidinylidene]methyl]benzoic acid; CFTR(inh)-172, CAS Number: 307510-92-5, Purity: G98% by HPLC, Molecular Formula: C18H10F3NO3S2, 5 mg