IMPPAT Phytochemical information: 
20-Hydroxypregn-4-en-3-one
20-Hydroxypregn-4-en-3-one
Summary

SMILES: O=C1CC[C@]2(C(=C1)CC[C@@H]1[C@@H]2CC[C@]2([C@H]1CC[C@@H]2C(O)C)C)C
InChI: InChI=1S/C21H32O2/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/h12-13,16-19,22H,4-11H2,1-3H3/t13?,16-,17+,18-,19-,20-,21+/m0/s1
InChIKey: RWBRUCCWZPSBFC-HWSYHKBZSA-N
DeepSMILES: O=CCC[C@]C=C6)CC[C@@H][C@@H]6CC[C@][C@H]6CC[C@@H]5CO)C))))))C)))))))))C
Scaffold Graph/Node/Bond level: O=C1C=C2CCC3C4CCCC4CCC3C2CC1
Scaffold Graph/Node level: OC1CCC2C(CCC3C4CCCC4CCC23)C1
Scaffold Graph level: CC1CCC2C(CCC3C4CCCC4CCC23)C1
Functional groups: CC(=O)C=C(C)C; CO
Chemical classification
ClassyFire Kingdom: Organic compounds
ClassyFire Superclass: Lipids and lipid-like molecules
ClassyFire Class: Steroids and steroid derivatives
ClassyFire Subclass: Pregnane steroids
NP Classifier Biosynthetic pathway: Terpenoids
NP Classifier Superclass: Steroids
NP Classifier Class: Pregnane steroids
Synonymous chemical names:
20-alpha-hydroxy-pregn-4-en-3-one, 20 alpha hydroxy-4-pregnen-3-one, 20(r)-hydroxy-pregn-4-en-3-one
External chemical identifiers:
CID:CID_161109; ChEBI:CHEBI:36728; SureChEMBL:SCHEMBL891075
Chemical structure download
2D:2D MOL2D MOL22D SDF
3D:3D MOL3D MOL23D SDF3D PDB3D PDBQT
20-Hydroxypregn-4-en-3-one
Physicochemical properties
Property name Tool Property value
Molecular weight (g/mol) RDKit 316.49
Log P RDKit 4.52
Topological polar surface area (Å2) RDKit 37.3
Number of hydrogen bond acceptors RDKit 2
Number of hydrogen bond donors RDKit 1
Number of carbon atoms RDKit 21
Number of heavy atoms RDKit 23
Number of heteroatoms RDKit 2
Number of nitrogen atoms RDKit 0
Number of sulfur atoms RDKit 0
Number of chiral carbon atoms RDKit 7
Stereochemical complexity RDKit 0.33
Number of sp hybridized carbon atoms RDKit 0
Number of sp2 hybridized carbon atoms RDKit 3
Number of sp3 hybridized carbon atoms RDKit 18
Shape complexity RDKit 0.86
Number of rotatable bonds RDKit 1
Number of aliphatic carbocycles RDKit 4
Number of aliphatic heterocycles RDKit 0
Number of aliphatic rings RDKit 4
Number of aromatic carbocycles RDKit 0
Number of aromatic heterocycles RDKit 0
Number of aromatic rings RDKit 0
Total number of rings RDKit 4
Number of saturated carbocycles RDKit 3
Number of saturated heterocycles RDKit 0
Number of saturated rings RDKit 3
Number of Smallest Set of Smallest Rings (SSSR) RDKit 4
20-Hydroxypregn-4-en-3-one
Drug-likeness properties
Property nameToolProperty value
Number of Lipinski’s rule of 5 violations RDKit 0
Lipinski’s rule of 5 RDKit Passed
Number of Ghose rule violations RDKit 0
Ghose rule RDKit Passed
Veber rule RDKit Good
Egan rule RDKit Good
GSK 4/400 rule RDKit Bad
Pfizer 3/75 rule RDKit Bad
Weighted quantitative estimate of drug-likeness (QEDw) score RDKit 0.77
20-Hydroxypregn-4-en-3-one
ADME properties
Property nameToolProperty value
Bioavailability score SwissADME 0.55
Solubility class [ESOL] SwissADME Moderately soluble
Solubility class [Silicos-IT] SwissADME Soluble
Blood Brain Barrier permeation SwissADME Yes
Gastrointestinal absorption SwissADME High
Log Kp (Skin permeation, cm/s) SwissADME -5.26
Number of PAINS structural alerts SwissADME 0
Number of Brenk structural alerts SwissADME 0
CYP1A2 inhibitor SwissADME No
CYP2C19 inhibitor SwissADME No
CYP2C9 inhibitor SwissADME Yes
CYP2D6 inhibitor SwissADME No
CYP3A4 inhibitor SwissADME No
P-glycoprotein substrate SwissADME No