CAS 739-26-4: 11β-Hydroxyetiocholanolone

Applications A metabolite of Etiocholanolone. References Eriksson, H., et al.: Eur. J. Biochem., 15, 132 (1970), Cook, D., et al.: Endocrinology, 93, 1019 (1973),

11b-Hydroxy etiocholanolone is a major metabolite of 11-ketotestosterone. It is formed from the reaction of 11-ketotestosterone with either carbon disulphide or plasma cortisol. The physiological levels of 11b-hydroxy etiocholanolone are not well known, but it has been observed that there are higher levels in women than in men. This metabolite is an active form of testosterone and can be detected in urine samples. 11b-hydroxy etiocholanolone has been shown to have a biphasic response to testosterone treatment, where it increases at low concentrations and decreases at high concentrations. This metabolite is also involved in the synthesis of estradiol through the side chain cleavage, which leads to a chromatographic peak during gas chromatography analysis.

11β-Hydroxyetiocholanolone, a hydrocortisone metabolite, exhibits elevated fecal levels in giraffes (G. camelopardalis) and plains zebras (E. quagga) in response to environmental stress.