Etiocholanolone
Etiocholanolone is a 17-ketosteroid which excreted in the urine as a metabolite of steroid hormones. The most common form of etiocholanolone present in the urine is the sulfate salt. This agent, also known as 5-isoandrosterone, may be used to evaluate adrenal cortex function, bone marrow performance and, in neoplastic disease, for immunostimulation.  (NCI04)