Estrone sulfate

Estrone sulfate
Names
	IUPAC name 17-Oxoestra-1,3,5(10)-trien-3-yl hydrogen sulfate
	Systematic IUPAC name (3aS,3bR,9bS,11aS)-11a-Methyl-1-oxo-2,3,3a,3b,4,5,9b,10,11,11a-decahydro-1H-cyclopenta[a]phenanthren-7-yl hydrogen sulfate
	Other names E1S; Oestrone sulfate; Estrone 3-sulfate; Estra-1,3,5(10)-trien-17-one 3-sulfate
Identifiers
CAS Number	481-97-0; 438-67-5 (sodium salt);
3D model (JSmol)	Interactive image;
ChEBI	CHEBI:17474;
ChEMBL	ChEMBL494753;
ChemSpider	2272513;
DrugBank	DB04574;
ECHA InfoCard	100.006.888
EC Number	207-120-4;
KEGG	C02538;
PubChem CID	3001028;
UNII	QTL48N278K;
CompTox Dashboard (EPA)	DTXSID50891501 ;
	InChI InChI=1S/C18H22O5S/c1-18-9-8-14-13-5-3-12(23-24(20,21)22)10-11(13)2-4-15(14)16(18)6-7-17(18)19/h3,5,10,14-16H,2,4,6-9H2,1H3,(H,20,21,22)/t14-,15-,16+,18+/m1/s1 Key: JKKFKPJIXZFSSB-CBZIJGRNSA-N;
	SMILES C[C@]12CC[C@H]3[C@H]([C@@H]1CCC2=O)CCC4=C3C=CC(=C4)OS(=O)(=O)O;
Properties
Chemical formula	C18H22O5S
Molar mass	350.429 g/mol
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Estrone sulfate, also known as E1S, E1SO4 and estrone 3-sulfate, is a natural, endogenous steroid and an estrogen ester and conjugate.

In addition to its role as a natural hormone, estrone sulfate is used as a medication, for instance in menopausal hormone therapy; for information on estrone sulfate as a medication, see the estrone sulfate (medication) article.

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