18-Oxocortisol is a derivative of cortisol that is produced by aldosterone synthase (CYP11B2). 18-Oxocortisol is a naturally occurring mineralocorticoid agonist. 18-Oxocortisol is a biomarker in adrenal vein sampling . In Vivo Administration of 18-oxocortisol to rats induces a mineralocorticoid-type hypertension with hypokalemia, cardiac and renal enlargement and cardiovascular lesions. Administration of 18-oxocortisol to sheep also causes a rapid increase in blood pressure. However, the doses required for increasing blood pressure are high. MCE has not independently confirmed the accuracy of these methods. They are for reference only. Form:Solid