5β-androstanedione

Androstanedione

5α-Androstanedione
5β-Androstanedione
Names
Systematic IUPAC name Androstane-3,17-dione
Other names Dihydroandrostenedione; etiocholane-3,17-dione
Identifiers
CAS Number	5982-99-0 (α/β) Y 846-46-8 (α) Y 1229-12-5 (β) Y
3D model (JSmol)	Interactive image
ChEBI	CHEBI:22542
ChemSpider	2299204 (α/β)
PubChem CID	3034809 (α/β)
InChI InChI=1S/C19H28O2/c1-18-9-7-13(20)11-12(18)3-4-14-15-5-6-17(21)19(15,2)10-8-16(14)18/h12,14-16H,3-11H2,1-2H3/t12?,14-,15-,16-,18-,19-/m0/s1 Key: RAJWOBJTTGJROA-RNQTWYFASA-N InChI=1/C19H28O2/c1-18-9-7-13(20)11-12(18)3-4-14-15-5-6-17(21)19(15,2)10-8-16(14)18/h12,14-16H,3-11H2,1-2H3/t12?,14-,15-,16-,18-,19-/m0/s1 Key: RAJWOBJTTGJROA-RNQTWYFABO
SMILES O=C4CC3CC[C@@H]2[C@H](CC[C@@]1(C(=O)CC[C@H]12)C)[C@@]3(C)CC4
Properties
Chemical formula	C19H28O2
Molar mass	288.43 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

Androstanediones are a pair of isomeric steroids which differ at the 5-position. They are distinguished as 5α-androstanedione (5α-androstane-3,17-dione) and 5β-androstanedione (5β-androstane-3,17-dione). In humans, 5α-androstanedione is a metabolic precursor of both testosterone and estrone.