prothionamide prothionamide protionamide (or prothionamide) is a drug used in the treatment of tuberculosis. prothionamideclinical dataahfs/drugs.cominternational drug namesatc codej04ad01 (who) identifiers iupac name 2-propylpyridine-4-carbothioamide cas number14222-60-7 ypubchem cid666418chemspider579891 nunii76yoo33643comptox dashboard (epa)dtxsid7045940 echa infocard100.034.615 chemical and physical dataformulac9h12n2smolar mass180.27 g·mol−13d model (jsmol)interactive image smiles cccc1cc(ccn1)c(=s)n inchi inchi=1s/c9h12n2s/c1-2-3-8-6-7(9(10)12)4-5-11-8/h4-6h,2-3h2,1h3,(h2,10,12) nkey:vrdiulhpqtycln-uhfffaoysa-n n ny (what is this?) (verify) it has also been tested for use in the treatment of leprosy.