Etiocholane, also known as 5ò-androstane or 5-epiandrostane, is an androstane (C19) steroid. It is the 5ò-isomer of androstane. Etiocholanes include 5ò-androstanedione, 5ò-dihydrotestosterone, 3ñ,5ò-androstanediol, 3ò,5ò-androstanediol, etiocholanolone, epietiocholanolone, and 3ñ,5ò-androstanol.
17ò-Ethyletiocholanes, or 5ò-pregnanes, include 5ò-dihydroprogesterone, pregnanolone, and epipregnanolone, as well as pregnanediol and pregnanetriol.