2-Hydroxyestradiol

2-Hydroxyestradiol
Names
	IUPAC name Estra-1,3,5(10)-triene-2,3,17β-triol
	Systematic IUPAC name (1S,3aS,3bR,9bS,11aS)-11a-Methyl-2,3,3a,3b,4,5,9b,10,11,11a-decahydro-1H-cyclopenta[a]phenanthrene-1,7,8-triol
	Other names 2-OHE2
Identifiers
CAS Number	362-05-0 ;
3D model (JSmol)	Interactive image;
ChemSpider	216475;
ECHA InfoCard	100.160.393
PubChem CID	247304;
UNII	AYU2L67YUU ;
CompTox Dashboard (EPA)	DTXSID3022372 ;
	InChI InChI=1S/C18H24O3/c1-18-7-6-11-12(14(18)4-5-17(18)21)3-2-10-8-15(19)16(20)9-13(10)11/h8-9,11-12,14,17,19-21H,2-7H2,1H3/t11-,12+,14-,17-,18-/m0/s1;
	SMILES C[C@]12CC[C@H]3[C@H]([C@@H]1CC[C@@H]2O)CCC4=CC(=C(C=C34)O)O;
Properties
Chemical formula	C18H24O3
Molar mass	288.387 g·mol−1
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

2-Hydroxyestradiol (2-OHE2), also known as estra-1,3,5(10)-triene-2,3,17β-triol, is an endogenous steroid, catechol estrogen, and metabolite of estradiol, as well as a positional isomer of estriol.

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