nordinone

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| ImageFile = Nordinone.svg

| ImageSize = 200px

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| IUPACName = 11α-Hydroxy-10,17,17-trimethylgonane-4,13-dien-3-one

| SystematicName = (3bR,9aR,9bS,10R)-10-Hydroxy-1,1,9a-trimethyl-1,2,3,3b,4,5,8,9,9a,9b,10,11-dodecahydro-7H-cyclopenta[a]phenanthren-7-one

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|Section1={{Chembox Identifiers

| CASNo = 33122-60-0

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| UNII_Ref = {{fdacite|correct|FDA}}

| UNII = 76FQ40X1XH

| PubChem = 3033958

| ChemSpiderID = 2298522

| InChI=1S/C20H28O2/c1-19(2)8-7-14-15-5-4-12-10-13(21)6-9-20(12,3)18(15)17(22)11-16(14)19/h10,15,17-18,22H,4-9,11H2,1-3H3/t15-,17+,18+,20-/m0/s1

| InChIKey= ALFAUJVLIRDQGD-MMTROXRISA-N

| SMILES = C[C@]12CCC(=O)C=C1CC[C@@H]3[C@@H]2[C@@H](CC4=C3CCC4(C)C)O}}

|Section2={{Chembox Properties

| C=20 | H=28 | O=2

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Nordinone (INN), also known as 11α-hydroxy-17,17-dimethyl-18-norandrosta-4,13-dien-3-one, is a naturally occurring steroid with antiandrogen properties isolated as a metabolite from the fungus Monocillium nordinii.{{cite book|author=J. Elks|title=The Dictionary of Drugs: Chemical Data: Chemical Data, Structures and Bibliographies|url=https://books.google.com/books?id=0vXTBwAAQBAJ&pg=PA647|date=14 November 2014|publisher=Springer|isbn=978-1-4757-2085-3|pages=647–}}{{cite journal|last1=Aver|first1=William A.|last2=Peña-Rodriguez|first2=Luis|title=Minor metabolites of Monocillium nordinii|journal=Phytochemistry|volume=26|issue=5|year=1987|pages=1353–1355|issn=0031-9422|doi=10.1016/S0031-9422(00)81811-7|bibcode=1987PChem..26.1353A }}