17-alpha-Hydroxypregnenolone

**Definition:** A 21-carbon steroid that is converted from PREGNENOLONE by STEROID 17-ALPHA-HYDROXYLASE. It is an intermediate in the delta-5 pathway of biosynthesis of GONADAL STEROID HORMONES and the adrenal CORTICOSTEROIDS.

**Tree numbers:** - D04.210.500.745.745.725.395 - D06.472.040.585.745.500 - D06.472.334.851.687.500.500

**Synonyms:** - Hydroxypregnenolone - 17 alpha-Hydroxypregnenolone - 17-Hydroxypregnenolone - 17-Hydroxypregnenolone, (3beta,17alpha)-Isomer - 17alpha-Hydroxypregnenolone