sulmazole sulmazole sulmazole is a cardiotonic drug. sulmazole has the chemical formula c14h13n3o2s and a molecular weight of 287.34 g/mol. sulmazoleidentifiers iupac name 2-(2-methoxy-4-methylsulfinylphenyl)-1h-imidazopyridine cas number73384-60-8pubchem cid5353uniihk56eh9k44comptox dashboard (epa)dtxsid1040617 echa infocard100.070.348 chemical and physical dataformulac14h13n3o2smolar mass287.34 g·mol−13d model (jsmol)interactive image smiles coc1=c(c=cc(=c1)s(=o)c)c2=nc3=c(n2)c=cc=n3 sulmazole has been shown to improve cardiac index and reduce pulmonary capillary wedge pressure without significant changes in a person's heart rate or arterial pressure. sulmazole inhibits the a1 adenosine receptor and functionally blocks gi, an inhibitory regulator. sulmazole is also a phosphodiesterase inhibitor. sulmazole is classified as an imidazopyridine and a sulfoxide. sulmazole can be taken intravenously or orally. side effects from sulmazole include blurring vision and temporary color blindness.