18-Hydroxycorticosterone

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18-Hydroxycorticosterone

Identifiers
CAS number	561-65-9^N
PubChem	11222
ChemSpider	10748^Y
MeSH	18-hydroxycorticosterone
ChEBI	CHEBI:16485^Y
Jmol-3D images	Image 1
SMILES O=C4\C=C2/[C@]([C@H]1[C@@H](O)C[C@@]3([C@@H](C(=O)CO)CC[C@H]3[C@@H]1CC2)CO)(C)CC4
InChI InChI=1S/C21H30O5/c1-20-7-6-13(24)8-12(20)2-3-14-15-4-5-16(18(26)10-22)21(15,11-23)9-17(25)19(14)20/h8,14-17,19,22-23,25H,2-7,9-11H2,1H3/t14-,15-,16+,17-,19+,20-,21+/m0/s1^Y Key: HFSXHZZDNDGLQN-ZVIOFETBSA-N^Y InChI=1/C21H30O5/c1-20-7-6-13(24)8-12(20)2-3-14-15-4-5-16(18(26)10-22)21(15,11-23)9-17(25)19(14)20/h8,14-17,19,22-23,25H,2-7,9-11H2,1H3/t14-,15-,16+,17-,19+,20-,21+/m0/s1 Key: HFSXHZZDNDGLQN-ZVIOFETBBO
Properties
Molecular formula	C₂₁H₃₀O₅
Molar mass	362.46 g/mol
N (verify) (what is: Y/N?) Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa)
Infobox references

18-Hydroxycorticosterone is a derivative of corticosterone.

It serves as an intermediate in the synthesis of aldosterone by the enzyme aldosterone synthase in the zona glomerulosa:

Corticosteroid biosynthetic pathway in rat

Mineralocorticoids
(3-one, 4-ene,
no FG at 16)

Glucocorticoids
(3-one, 4-ene,
11-FG,
17-hydroxy)

Pregnene	CORTISONE

Pregnenedione (+20-one)	HYDROCORTISONE/CORTISOL^# (Hydrocortisone aceponate, Hydrocortisone buteprate, Hydrocortisone butyrate) • Budesonide • Ciclesonide • Deflazacort • Medrysone • Tixocortol • HALOGENATED AT 6: Cloprednol • HALOGENATED, WITH FG AT 16: Halcinonide

Pregnadiene (+1-ene)	Rimexolone • HALOGENATED, WITH FG AT 16: Flunisolide • Triamcinolone • Amcinonide • Fluocinolone acetonide (Fluocinonide)

Pregnadienediol (+21-hydroxy)	Prednisone (Meprednisone) • HALOGENATED AT 9: Fluorometholone • HALOGENATED, WITH FG AT 16: Fluocortolone (Clocortolone, Diflucortolone, Fluocortin) • Desoximetasone

Pregnadienetriol (+11-hydroxy)	Prednisolone^# (Methylprednisolone, Methylprednisolone aceponate, Prednicarbate, Prednylidene) • Desonide • HALOGENATED: Fluprednisolone (Difluprednate, Fluperolone) • HALOGENATED, WITH FG AT 16: Dexamethasone^# • Betamethasone (Clobetasol, Clobetasone, Diflorasone, Halometasone, Ulobetasol) • Beclometasone • Paramethasone • Alclometasone • Fluclorolone • Flumetasone • Fluprednidene

Pregnatriene (+2-ene)	Cortivazol

Androstene	HALOGENATED, WITH FG AT 16: Fluticasone (Fluticasone propionate, Fluticasone furoate)

Other/ungrouped	HALOGENATED: Loteprednol • HALOGENATED, WITH FG AT 16: Fludroxycortide • Formocortal • Mometasone furoate