IMPPAT Phytochemical information: 
Pregnenolone
Pregnenolone
Summary

SMILES: O[C@H]1CC[C@]2(C(=CC[C@@H]3[C@@H]2CC[C@]2([C@H]3CC[C@@H]2C(=O)C)C)C1)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/h4,15-19,23H,5-12H2,1-3H3/t15-,16-,17+,18-,19-,20-,21+/m0/s1
InChIKey: ORNBQBCIOKFOEO-QGVNFLHTSA-N
DeepSMILES: O[C@H]CC[C@]C=CC[C@@H][C@@H]6CC[C@][C@H]6CC[C@@H]5C=O)C))))))C))))))))C6))C
Scaffold Graph/Node/Bond level: C1=C2CCCCC2C2CCC3CCCC3C2C1
Scaffold Graph/Node level: C1CCC2C(C1)CCC1C3CCCC3CCC21
Scaffold Graph level: C1CCC2C(C1)CCC1C3CCCC3CCC21
Functional groups: CC(C)=O; CC=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:
pregnenolone
External chemical identifiers:
CID:8955; ChEMBL:CHEMBL253363; ChEBI:16581; ZINC:ZINC000003861150; FDASRS:73R90F7MQ8; SureChEMBL:SCHEMBL129572; MolPort-002-506-906
Chemical structure download
2D:2D MOL2D MOL22D SDF
3D:3D MOL3D MOL23D SDF3D PDB3D PDBQT
Pregnenolone
Physicochemical properties
Property name Tool Property value
Molecular weight (g/mol) RDKit 0
Log P RDKit 0
Topological polar surface area (Å2) RDKit
Number of hydrogen bond acceptors RDKit
Number of hydrogen bond donors RDKit
Number of carbon atoms RDKit
Number of heavy atoms RDKit
Number of heteroatoms RDKit
Number of nitrogen atoms RDKit
Number of sulfur atoms RDKit
Number of chiral carbon atoms RDKit
Stereochemical complexity RDKit 0
Number of sp hybridized carbon atoms RDKit
Number of sp2 hybridized carbon atoms RDKit
Number of sp3 hybridized carbon atoms RDKit
Shape complexity RDKit
Number of rotatable bonds RDKit
Number of aliphatic carbocycles RDKit
Number of aliphatic heterocycles RDKit
Number of aliphatic rings RDKit
Number of aromatic carbocycles RDKit
Number of aromatic heterocycles RDKit
Number of aromatic rings RDKit
Total number of rings RDKit
Number of saturated carbocycles RDKit
Number of saturated heterocycles RDKit
Number of saturated rings RDKit
Number of Smallest Set of Smallest Rings (SSSR) RDKit
Pregnenolone
Drug-likeness properties
Property nameToolProperty value
Number of Lipinski’s rule of 5 violations RDKit 0
Lipinski’s rule of 5 filter RDKit Passed
Number of Ghose filter violations RDKit 0
Ghose filter RDKit Passed
Veber filter RDKit Good
Pfizer 3/75 filter RDKit Bad
GSK 4/400 filter RDKit Bad
Weighted quantitative estimate of drug-likeness (QEDw) score RDKit 0.7224
Pregnenolone
ADMET 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 -5.23
Number of PAINS structural alerts SwissADME 0.0
Number of Brenk structural alerts SwissADME 1.0
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
Pregnenolone
Predicted human target proteins
Protein identifierHGNC symbolCombined score from STITCH database
ENSP00000201586SULT2B1984
ENSP00000217961STS919
ENSP00000221421LHB900
ENSP00000222002SULT2A1896
ENSP00000260433CYP19A1863
ENSP00000264708POMC958
ENSP00000268053CYP11A1999
ENSP00000276449STAR871
ENSP00000303585CLIP1800
ENSP00000310721CYP7B1953
ENSP00000318852BPNT1900
ENSP00000336528NR1I2956
ENSP00000358421HSD3B1955
ENSP00000358424HSD3B2929
ENSP00000358595CGA900
ENSP00000358903CYP17A1991
ENSP00000366314TRPM3826
ENSP00000408860CYP21A2972
The human target proteins were predicted using STITCH, a database of Chemical-Protein interaction networks.