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16α-Hydroxyandrostenedione

Names
IUPAC name 16α-Hydroxyandrost-4-ene-3,17-dione
Systematic IUPAC name (2R,3aS,3bR,9aR,9bS,11aS)-2-Hydroxy-9a,11a-dimethyl-2,3,3a,4,5,8,9,9a,9b,10,11,11a-dodecahydro-1H-cyclopentaphenanthrene-1,7(3bH)-dione
Other names 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/s1Key: SSBCZTXGVMMZOT-NBBHSKLNSA-N
SMILES C12CCC(=O)C=C1CC32CC4(3C(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 , 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. 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.

See also

• 15α-Hydroxydehydroepiandrosterone
• Androstenedione
• 11β-Hydroxyandrostenedione

References

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

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