16α-Hydroxyandrostenedione

16α-Hydroxyandrostenedione
Names
	IUPAC name (8R,9S,10R,13S,14S,16R)-16-Hydroxy-10,13-dimethyl-2,6,7,8,9,11,12,14,15,16-decahydro-1H-cyclopenta[a]phenanthrene-3,17-dione
	Other names 16α-Hydroxyandrost-4-ene-3,17-dione; 16α-OH-A4
Identifiers
CAS Number	63-02-5;
3D model (JSmol)	Interactive image;
ChEBI	CHEBI:27582;
ChEMBL	ChEMBL1908014;
ChemSpider	389474;
PubChem CID	440574;
UNII	JN8H7214IR;
CompTox Dashboard (EPA)	DTXSID20331500 ;
	InChI InChI=1S/C19H26O3/c1-18-7-5-12(20)9-11(18)3-4-13-14(18)6-8-19(2)15(13)10-16(21)17(19)22/h9,13-16,21H,3-8,10H2,1-2H3/t13-,14+,15+,16-,18+,19+/m1/s1 Key: SSBCZTXGVMMZOT-NBBHSKLNSA-N;
	SMILES C[C@]12CCC(=O)C=C1CC[C@@H]3[C@@H]2CC[C@]4([C@H]3C[C@H](C4=O)O)C;
Properties
Chemical formula	C19H26O3
Molar mass	302.414 g/mol
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
	Infobox references

16α-Hydroxyandrostenedione (16α-OH-A4), also known as 16α-hydroxyandrost-4-ene-3,17-dione, is an endogenous and naturally occurring steroid and metabolic intermediate in the biosynthesis of estriol during pregnancy.[1][2][3] It is produced from dehydroepiandrosterone (DHEA), which is converted into 16α-hydroxy-DHEA sulfate, then desulfated and aromatized into 16α-hydroxyestrone, and finally converted into estriol by 17β-hydroxysteroid dehydrogenase.[1][2]

References

Rodney Rhoades; David R. Bell (2009). Medical Physiology: Principles for Clinical Medicine. Lippincott Williams & Wilkins. pp. 713–714. ISBN 978-0-7817-6852-8.
Charles Graham (2 December 2012). Reproductive Biology of the Great Apes: Comparative and Biomedical Perspectives. Elsevier. pp. 56–. ISBN 978-0-323-14971-6.
Vitamins and Hormones. Academic Press. 7 September 2005. pp. 282–. ISBN 978-0-08-045978-3.

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