Stilbestrol

Stilbestrol
Names
	Preferred IUPAC name 4,4′-[(E)-Ethene-1,2-diyl]diphenol
	Other names Dihydroxystilbene; 4,4'-Dihydroxystilbene, 4,4'-stilbenediol
Identifiers
CAS Number	659-22-3 ;
3D model (JSmol)	Interactive image; Interactive image;
ChemSpider	4445526;
PubChem CID	5282363;
UNII	6DRS5V9W5C ;
CompTox Dashboard (EPA)	DTXSID7022465 ;
	InChI InChI=1S/C14H12O2/c15-13-7-3-11(4-8-13)1-2-12-5-9-14(16)10-6-12/h1-10,15-16H/b2-1+ Key: XLAIWHIOIFKLEO-OWOJBTEDSA-N;
	SMILES C1=CC(=CC=C1C=CC2=CC=C(C=C2)O)O; c1cc(ccc1/C=C/c2ccc(cc2)O)O;
Properties
Chemical formula	C14H12O2
Molar mass	212.24388 g/mol
Magnetic susceptibility (χ)	−130·10−6 cm3/mol
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Stilbestrol, or stilboestrol, also known as 4,4'-dihydroxystilbene or 4,4'-stilbenediol, is a stilbenoid nonsteroidal estrogen and the parent compound of a group of more potent nonsteroidal estrogen derivatives that includes, most notably, diethylstilbestrol (DES). The term "stilbestrol" is often used incorrectly to refer to DES, but they are not the same compound.

Stilbestrol itself is an active estrogen but is less potent than DES and other derivatives.