Ketosteroid



A ketosteroid, or an oxosteroid, is a steroid in which a hydrogen atom has been replaced with a ketone (C=O) group.

A 17-ketosteroid is a ketosteroid in which the ketone is located specifically at the C17 position (in the upper right corner of most structure diagrams).

Examples of 17-ketosteroids include:


 * Androstenedione
 * Androstanedione
 * Androsterone
 * Dehydroepiandrosterone
 * Epiandrosterone
 * Epietiocholanolone
 * Etiocholanolone

17-Ketosteroids are endogenous steroid hormones.