17-Ketosteroid

Steroid skeleton. Carbons 18 and above can be absent.

Androstenedione

Androsterone

Estrone

A 17-ketosteroid is a steroid that has a ketone (C=O) functional group at the C17 position (in the upper right corner of most diagrams.) These compound are products of metabolization of testosterone in most tissues such as liver.

Examples of 17-ketosteroids include:

External links

MedlinePlus Encyclopedia 003460

Steroid classification

C₁₇	Gonane

C₁₈	Estrane: Dehydrogenated: Estrene Estradiene Estratriene; Substituted: Estratrienolone Estratrienediol Estratrienetriol

C₁₉	Androstane: Dehydrogenated: Androstene Androstadiene Androstatriene; Substituted: Androstanol Androstenol Androstanone Androstenone Androstanediol Androstenediol Androstanedione Androstenedione Androstenetrione Androstanolone Androstenolone Androstadienol Androstadienone; Etiocholane

C₂₁	Pregnane: Dehydrogenated: Pregnene Pregnadiene Pregnatriene; Substituted: Pregnanediol Pregnanetriol Pregnenediol Pregnanedione Pregnenedione

C₂₃	Cardanolide

C₂₄	Cholane Bile acid

C₂₇	Cholestane

Functional group	17-Ketosteroid Hydroxysteroid Halogenated steroid

Elements removed	Norsteroid Secosteroid

Elements replaced	Azasteroid

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