IMPPAT Phytochemical information: 
2-Cyclopenten-1-one

2-Cyclopenten-1-one
Summary

SMILES: C1CC=CC1=O
InChI: InChI=1S/C5H6O/c6-5-3-1-2-4-5/h1,3H,2,4H2
InChIKey: BZKFMUIJRXWWQK-UHFFFAOYSA-N
DeepSMILES: CCC=CC5=O
Scaffold Graph/Node/Bond level: O=C1C=CCC1
Scaffold Graph/Node level: OC1CCCC1
Scaffold Graph level: CC1CCCC1
Functional groups: O=C1C=CCC1
Chemical classification
ClassyFire Kingdom: Organic compounds
ClassyFire Superclass: Organic oxygen compounds
ClassyFire Class: Organooxygen compounds
ClassyFire Subclass: Carbonyl compounds
Synonymous chemical names:
cyclopentenone
External chemical identifiers:
CID:13588; ChEMBL:CHEMBL52190; ChEBI:141550; ZINC:ZINC000095918567; FDASRS:Q0U2IGF9CK; SureChEMBL:SCHEMBL24628; MolPort-001-770-786
Chemical structure download


2-Cyclopenten-1-one
Physicochemical properties
Property name Tool Property value
Molecular weight (g/mol) RDKit 82.1
Log P RDKit 0.91
Topological polar surface area (Å2) RDKit 17.07
Number of hydrogen bond acceptors RDKit 1
Number of hydrogen bond donors RDKit 0
Number of carbon atoms RDKit 5
Number of heavy atoms RDKit 6
Number of heteroatoms RDKit 1
Number of nitrogen atoms RDKit 0
Number of sulfur atoms RDKit 0
Number of chiral carbon atoms RDKit 0
Stereochemical complexity RDKit 0
Number of sp hybridized carbon atoms RDKit 0
Number of sp2 hybridized carbon atoms RDKit 3
Number of sp3 hybridized carbon atoms RDKit 2
Shape complexity RDKit 0.4
Number of rotatable bonds RDKit 0
Number of aliphatic carbocycles RDKit 1
Number of aliphatic heterocycles RDKit 0
Number of aliphatic rings RDKit 1
Number of aromatic carbocycles RDKit 0
Number of aromatic heterocycles RDKit 0
Number of aromatic rings RDKit 0
Total number of rings RDKit 1
Number of saturated carbocycles RDKit 0
Number of saturated heterocycles RDKit 0
Number of saturated rings RDKit 0
Number of Smallest Set of Smallest Rings (SSSR) RDKit 1


2-Cyclopenten-1-one
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 3
Ghose filter RDKit Failed
Veber filter RDKit Good
Pfizer 3/75 filter RDKit Bad
GSK 4/400 filter RDKit Good
Weighted quantitative estimate of drug-likeness (QEDw) score RDKit 0.4241


2-Cyclopenten-1-one
ADMET properties
Property nameToolProperty value
Bioavailability score SwissADME 0.55
Solubility class [ESOL] SwissADME Very soluble
Solubility class [Silicos-IT] SwissADME Soluble
Blood Brain Barrier permeation SwissADME Yes
Gastrointestinal absorption SwissADME High
Log Kp (Skin permeation, cm/s) SwissADME -6.42
Number of PAINS structural alerts SwissADME 0.0
Number of Brenk structural alerts SwissADME 0.0
CYP1A2 inhibitor SwissADME No
CYP2C19 inhibitor SwissADME No
CYP2C9 inhibitor SwissADME No
CYP2D6 inhibitor SwissADME No
CYP3A4 inhibitor SwissADME No
P-glycoprotein substrate SwissADME No


2-Cyclopenten-1-one
Predicted human target proteins
Protein identifierHGNC symbolCombined score from STITCH database
ENSP00000267163RB1700
ENSP00000311032CASP3721
The human target proteins were predicted using STITCH, a database of Chemical-Protein interaction networks.