E3

Esters []
Estriol propionate
Estriol dipropionate

Molecular structure via molpic based on CDK

Physical properties []
Molecular mass	288.4 g/mol [1]
Density	1.27 g/cu cm at 25 °C g/cm3 [1]
Appearance	Leaflets from alcohol [1]
Odor	Odorless [1]
Melting point	82-86 [1]
Decomposition	When heated to decomposition it emits acrid smoke and irritating fumes. [1]
Solubility	Slightly soluble in ethyl ether, benzene, trifluoroacetic acid; very soluble in pyridine [1]
Predicted LogP	2.5 [1]

Structural Identifiers []
Molecular formula	C18H24O3 [1]
IUPAC name	(8R,9S,13S,14S,16R,17R)-13-methyl-6,7,8,9,11,12,14,15,16,17-decahydrocyclopenta[a]phenanthrene-3,16,17-triol [1]
SMILES	C[C@]12CC[C@H]3[C@H]([C@@H]1C[C@H]([C@@H]2O)O)CCC4=C3C=CC(=C4)O [1]
InChI	InChI=1S/C18H24O3/c1-18-7-6-13-12-5-3-11(19)8-10(12)2-4-14(13)15(18)9-16(20)17(18)21/h3,5,8,13-17,19-21H,2,4,6-7,9H2,1H3/t13-,14-,15+,16-,17+,18+/m1/s1 [1]
InChIKey	PROQIPRRNZUXQM-ZXXIGWHRSA-N [1]

Estriol

Estriol (also known as Trihydroxyestrin, Aacifemine, Estratriol, Ovestrion, Destriol, Theelol, Tridestrin, Oestratriol, Orestin or Ortho-Gynest) is a substance of the steroid class.

Chemistry