4338 18-Hydroxycorticosterone 11 beta,18,21-Trihydroxypregn-4-ene-3,20-dione. 18-Hydroxycorticosterone is a derivative of corticosterone. It serves as an intermediate in the synthesis of aldosterone by the enzyme aldosterone synthase in the zona glomerulosa. 561-65-9 11222 C21H30O5 White powder. 18-Hydroxycorticosterone is a derivative of corticosterone. It serves as an intermediate in the synthesis of aldosterone by the enzyme aldosterone synthase in the zona glomerulosa. (Wikipedia) 18-Hydroxycorticosterone (18OHB) has low affinity for the mineralocorticoid receptor and mainly originates from the conversion of corticosterone by the aldosterone synthase, although small amounts may be produced by the 11β-hydroxylase. Serum concentrations of 18OHB increase with increased aldosterone synthesis due to sodium depletion and angiotensin II infusion. (A15449) Accumulation of 18-hydroxycorticosterone in a given organ has been shown to be toxic for the body. No indication of carcinogenicity to humans (not listed by IARC). This is an endogenously produced metabolite found in the human body. It is used in metabolic reactions, catabolic reactions or waste generation. Chronically high levels of 18-hydroxycorticosterone are associated with at least 3 inborn errors of metabolism including: Adrenal hyperplasia type 5, Corticosterone methyl oxidase I deficiency and Corticosterone methyl oxidase II deficiency. 2014-08-29T06:14:49Z 2026-04-04T19:16:02Z 18-Hydroxycorticosterone C01124 16485 true [H][C@@]12CC[C@H](C(=O)CO)[C@@]1(CO)C[C@H](O)[C@@]1([H])[C@@]2([H])CCC2=CC(=O)CC[C@]12C C21H30O5 InChI=1S/C21H30O5/c1-20-7-6-13(24)8-12(20)2-3-14-15-4-5-16(18(26)10-22)21(15,11-23)9-17(25)19(14)20/h8,14-17,19,22-23,25H,2-7,9-11H2,1H3/t14-,15-,16+,17-,19+,20-,21+/m0/s1 HFSXHZZDNDGLQN-ZVIOFETBSA-N 362.4599 362.20932407 Endogenous Solid HMDB00319 10748 Boudi, Ahmed; Lemoine, Pascale; Viossat, Bernard; Tomas, Alain; Fiet, Jean; Galons, Herve. A convenient synthesis of 18-hydroxycorticosterone and 18-hydroxy-11-desoxycorticosterone via stereospecific hypoiodination of 20-hydroxysteroids. Tetrahedron (1999), 55(16), 5171-5176. CHEM003244 DTXSID80897516 94.83000000000001 97.7747 39.76700665940721 3 5 3 13.799060379167592 -2.7672247982276605 0 4 1.28 -3.38 1.53e-01 g/l