Dienestrol Clinical data Trade names Ortho Dienestrol, Dienoestrol, Dienoestrol Ortho, Sexadien, Cycladiene, Denestrolin, Dienol, Dinovex, Follormon, Oestrodiene, Synestrol Other names Dienoestrol; p-[(E,E)-1-Ethylidene-2-(p-hydroxyphenyl)-2-butenyl]phenol; 3,4-Di(para-hydroxyphenyl)-2,4-hexadiene AHFS/Drugs.com Micromedex Detailed Consumer Information Drug class Nonsteroidal estrogen ATC code G03CB01 (WHO) G03CC02 (WHO) Identifiers IUPAC name 4-[4-(4-hydroxyphenyl)hexa-2,4-dien-3-yl]phenol CAS Number 13029-44-2 N PubChem CID 667476 IUPHAR/BPS 7160 DrugBank DB00890 Y ChemSpider 580857 Y UNII RRW32X4U1F KEGG D00898 Y ChEBI CHEBI:4518 N ChEMBL ChEMBL1018 Y CompTox Dashboard (EPA) DTXSID7022382 ECHA InfoCard 100.001.381 Chemical and physical data Formula C18H18O2 Molar mass 266.340 g·mol−1 3D model (JSmol) Interactive image SMILES Oc2ccc(C(/C(c1ccc(O)cc1)=C/C)=C\C)cc2 InChI InChI=1S/C18H18O2/c1-3-17(13-5-9-15(19)10-6-13)18(4-2)14-7-11-16(20)12-8-14/h3-12,19-20H,1-2H3/b17-3+,18-4+ Y Key:NFDFQCUYFHCNBW-SCGPFSFSSA-N Y NY (what is this?) (verify)