pentafluranol pentafluranol pentafluranol (inn, ban) (developmental code name bx-430) is a synthetic, nonsteroidal estrogen of the stilbestrol group related to diethylstilbestrol that was developed for the treatment of benign prostatic hyperplasia never marketed. it was described in the medical literature in 1974. pentafluranolclinical dataatc codenoneidentifiers iupac name 2-fluoro-4-phenol cas number65634-39-1pubchem cid3047826chemspider16737041unii95rfz48151chemblchembl2105409chemical and physical dataformulac17h15f5o2molar mass346.297 g·mol−13d model (jsmol)interactive image smiles cc(c1=cc(=c(c=c1)o)f)c(cc(f)(f)f)c2=cc(=c(c=c2)o)f inchi inchi=1s/c17h15f5o2/c1-9(10-2-4-15(23)13(18)6-10)12(8-17(20,21)22)11-3-5-16(24)14(19)7-11/h2-7,9,12,23-24h,8h2,1h3key:prrsfmgodmupjn-uhfffaoysa-n