What is Progesterone?
{{Chembox <!-- Images -->| Name = | ImageFile = | ImageFile1 = Progesterone.svg | ImageSize1 = 225px | ImageAlt1 = The chemical structure of progesterone. | ImageFile2 = Progesterone-3D-balls.png | ImageSize2 = 225px | ImageAlt2 = A ball-and-stick model of progesterone. <!-- Names -->| IUPACName = (8''S'',9''S'',10''R'',13''S'',14''S'',17''S'')-17-acetyl-10,13-dimethyl-1,2,6,7,8,9,11,12,14,15,16,17-dodecahydrocyclopenta[a]phenanthren-3-one | OtherNames = P4; Pregn-4-ene-3,20-dione<ref>{{cite book | first1 = Norman | last1 = Adler | first2 = Donald | last2 = Pfaff | first3 = Robert W. | last3 = Goy | name-list-style = vanc | title = Handbook of Behavioral Neurobiology Volume 7 Reproduction | date = 6 Dec 2012 | publisher=Plenum Press | location = New York | isbn = 978-1-4684-4834-4 | page = 189 | edition = 1st | url = https://books.google.com/books?id=MoDrBwAAQBAJ&dq=pregn-4-ene-3%2C20-dione%3B+abbreviated+as+P4&pg=PA189 | accessdate = 4 July 2015 }}</ref><ref>{{cite web|title=progesterone (CHEBI:17026)|url=http://www.ebi.ac.uk/chebi/searchId.do;jsessionid=309FCC7D184C0AD58410071F3F163155?chebiId=17026&structureView=applet&viewTermLineage=|website=ChEBI|publisher=European Molecular Biology Laboratory-EBI|accessdate=4 July 2015}}</ref> | Verifiedfields = changed | Watchedfields = changed | verifiedrevid = 444066687 <!-- Sections -->| SystematicName = | Section1 = {{Chembox Identifiers | CASNo_Ref = {{cascite|correct|??}} | CASNo = 57-83-0 | ChEBI_Ref = {{ebicite|correct|EBI}} | ChEBI = 17026 | ChEMBL_Ref = {{ebicite|correct|EBI}} | ChEMBL = 103 | ChemSpiderID_Ref = {{chemspidercite|correct|chemspider}} | ChemSpiderID = 5773 | DrugBank_Ref = {{drugbankcite|correct|drugbank}} | DrugBank = DB00396 | KEGG_Ref = {{keggcite|changed|kegg}} | KEGG = C00410 | PubChem = 5994 | SMILES = CC(=O)[C@H]1CC[C@@H]2[C@@]1(CC[C@H]3[C@H]2CCC4=CC(=O)CC[C@]34C)C | StdInChI_Ref = {{stdinchicite|changed|chemspider}} | StdInChI = InChI=1S/C21H30O2/c1-13(22)17-6-7-18-16-5-4-14-12-15(23)8-10-20(14,2)19(16)9-11-21(17,18)3/h12,16-19H,4-11H2,