falecalcitriol falecalcitriol falecalcitriol (inn) is an analog of calcitriol. it has a higher potency both in vivo and in vitro systems, and longer duration of action in vivo. falecalcitriolclinical dataahfs/drugs.cominternational drug namesroutes ofadministrationoralatc codenonelegal statuslegal status in general: ℞ (prescription only) identifiers iupac name (1r,3s,5z)-5--2,3,3a,5,6,7-hexahydro-1h-inden-4-ylidene]ethylidene]-4-methylidenecyclohexane-1,3-diol cas number83805-11-2 ypubchem cid5282190iuphar/bps2781chemspider4445383 nuniig70a8514t8keggd01662 ychemblchembl2106158 nchemical and physical dataformulac27h38f6o3molar mass524.588 g·mol−13d model (jsmol)interactive image smiles c(cccc(c(f)(f)f)(c(f)(f)f)o)1cc\21(ccc/c2=c\c=c/3\c(c(c3=c)o)o)c inchi inchi=1s/c27h38f6o3/c1-16(6-4-13-25(36,26(28,29)30)27(31,32)33)21-10-11-22-18(7-5-12-24(21,22)3)8-9-19-14-20(34)15-23(35)17(19)2/h8-9,16,20-23,34-36h,2,4-7,10-15h2,1,3h3/b18-8+,19-9-/t16-,20-,21-,22+,23+,24-/m1/s1 nkey:xpygghvsfmuhlh-uusulhaxsa-n n ny (what is this?) (verify)