ethyl biscoumacetate ethyl biscoumacetate ethyl biscoumacetate is a vitamin k antagonist. ethyl biscoumacetateclinical datatrade namestromexanatc codeb01aa08 (who) identifiers iupac name 3,3-(ethyl acetate-methylene)-bis(4-hydroxycoumarin) cas number548-00-5 npubchem cid11047drugbankdb08794 ychemspider10444159 yunii08kl644731keggd07131 ychemblchembl2106261 ncomptox dashboard (epa)dtxsid3057771 echa infocard100.008.128 chemical and physical dataformulac22h16o8molar mass408.362 g·mol−1 inchi inchi=1s/c22h16o8/c1-2-28-20(25)15(16-18(23)11-7-3-5-9-13(11)29-21(16)26)17-19(24)12-8-4-6-10-14(12)30-22(17)27/h3-10,15,23-24h,2h2,1h3 ykey:jclhqfutfhuxnn-uhfffaoysa-n y ny (what is this?) (verify)