valproate pivoxil valproate pivoxil valproate pivoxil (pivadin, valproxen) is an anticonvulsant used in the treatment of epilepsy. it is the pivaloyloxymethyl ester derivative of valproic acid. it is likely a prodrug of valproic acid, as pivoxil esters are commonly employed to make prodrugs in medicinal chemistry. valproate pivoxilclinical dataroutes ofadministrationoralatc codenonelegal statuslegal status in general: ℞ (prescription only) identifiers iupac name methyl 2-propylpentanoate cas number77372-61-3 npubchem cid71160chemspider64301 yunii9f5a05a29tcomptox dashboard (epa)dtxsid40228089 echa infocard100.071.502 chemical and physical dataformulac14h26o4molar mass258.358 g·mol−13d model (jsmol)interactive image smiles o=c(ococ(=o)c(c)(c)c)c(ccc)ccc inchi inchi=1s/c14h26o4/c1-6-8-11(9-7-2)12(15)17-10-18-13(16)14(3,4)5/h11h,6-10h2,1-5h3 ykey:djefrldeqksnlm-uhfffaoysa-n y ny (what is this?) (verify)