visnadine visnadine visnadine (or visnadin) is a natural vasodilator. it was first isolated from bishop's weed (ammi visnaga), a plant indigenous to the mediterranean region which has been used for centuries in egypt as a spasmolytic. visnadineclinical dataahfs/drugs.cominternational drug namesatc codec04ax24 (who) identifiers iupac name (9r,10r)-10-(acetyloxy)-8,8-dimethyl-2-oxo-9,10-dihydro-2h,8h-pyranochromen-9-yl (2r)-2-methylbutanoate cas number477-32-7pubchem cid442151chemspider390669unii0rl4v0k263keggd08735 yecha infocard100.006.833 chemical and physical dataformulac21h24o7molar mass388.416 g·mol−13d model (jsmol)interactive image smiles cc(c(=o)o1(oc2=c(1oc(=o)c)c3=c(c=cc(=o)o3)c=c2)(c)c)c inchi inchi=1s/c21h24o7/c1-6-11(2)20(24)27-19-18(25-12(3)22)16-14(28-21(19,4)5)9-7-13-8-10-15(23)26-17(13)16/h7-11,18-19h,6h2,1-5h3/t11-,18-,19-/m1/s1key:gvbnspfbyxgree-cxwagaitsa-n (verify)