19-Iodocholest-5-en-3 beta-ol. A cholesterol derivative usually substituted with radioactive iodine in the 19 position. The compound is an adrenal cortex scanning agent used in the assessment of patients suspected of having Cushing's syndrome, hyperaldosteronism, pheochromocytoma and adrenal remnants following total adrenalectomy.

Synonyms: 19-Iodocholesterol, 19 Iodocholesterol, Cholest-5-en-3-ol, 19-(iodo-125I)-, (3beta)-, 30461-91-7