ly-393558 ly-393558 ly-393558 is a potent serotonin reuptake inhibitor and antagonist of the 5-ht1b, 5-ht1d, and 5-ht2a receptors. ly-393558 was also found to reduce serotonin-induced vasoconstriction, indicating that it may have therapeutic potential for the treatment of pulmonary hypertension. ly-393558identifiers iupac name 1-(2-(4-(6-fluoro-1h-indol-3-yl)-3,6-dihydropyridin-1(2h)-yl)ethyl)-3-isopropyl-6-(methylsulfonyl)-3,4-dihydro-1h-benzothiadiazine 2,2-dioxide cas number271780-64-4pubchem cid10347428chemspider8522886chemblchembl4303390comptox dashboard (epa)dtxsid60438426 chemical and physical dataformulac26h31fn4o4s2molar mass546.68 g·mol−13d model (jsmol)interactive image smiles fc1=cc=c2c(nc=c2c3=ccn(ccn4s(n(c(c)c)cc5=c4c=cc(s(=o)(c)=o)=c5)(=o)=o)cc3)=c1 inchi inchi=1s/c26h31fn4o4s2/c1-18(2)31-17-20-14-22(36(3,32)33)5-7-26(20)30(37(31,34)35)13-12-29-10-8-19(9-11-29)24-16-28-25-15-21(27)4-6-23(24)25/h4-8,14-16,18,28h,9-13,17h2,1-3h3key:quslyapltmmcfe-uhfffaoysa-n