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NDR

Summary
Name:Norethindrone
Synonyms:(14beta,17alpha)-17-ethynyl-17-hydroxyestr-4-en-3-one
Norethisterone
Formula:C20 H26 O2
Formal charge:0
Formula weight:298.419 Da
Component type:NON-POLYMER

Chemical Identifiers

ProgramVersionName
ACDLabs14.52(13xi)-17-hydroxy-14beta,17xi-19-norpregn-4-en-20-yn-3-one
OpenEye OEToolkits3.1.0.0(8~{R},9~{S},10~{R},13~{S},14~{S},17~{R})-17-ethynyl-13-methyl-17-oxidanyl-1,2,6,7,8,9,10,11,12,14,15,16-dodecahydrocyclopenta[a]phenanthren-3-one

Chemical Descriptors

TypeProgramVersionDescriptor
SMILESACDLabs14.52O=C1CCC2C3CCC4(C)C(CCC4(O)C#C)C3CCC2=C1
InChIInChI1.06InChI=1S/C20H26O2/c1-3-20(22)11-9-18-17-6-4-13-12-14(21)5-7-15(13)16(17)8-10-19(18,20)2/h1,12,15-18,22H,4-11H2,2H3/t15-,16+,17+,18-,19-,20-/m0/s1
InChIKeyInChI1.06VIKNJXKGJWUCNN-XGXHKTLJSA-N
SMILES_CANONICALCACTVS3.385C[C@]12CC[C@H]3[C@@H](CCC4=CC(=O)CC[C@H]34)[C@@H]1CC[C@@]2(O)C#C
SMILESCACTVS3.385C[C]12CC[CH]3[CH](CCC4=CC(=O)CC[CH]34)[CH]1CC[C]2(O)C#C
SMILES_CANONICALOpenEye OEToolkits3.1.0.0C[C@]12CC[C@H]3[C@H]([C@@H]1CC[C@]2(C#C)O)CCC4=CC(=O)CC[C@H]34
SMILESOpenEye OEToolkits3.1.0.0CC12CCC3C(C1CCC2(C#C)O)CCC4=CC(=O)CCC34

259987

PDB entries from 2026-09-23

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