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:CID_13588; ChEMBL:CHEMBL52190; ChEBI: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 RDKit Passed
Number of Ghose rule violations RDKit 3
Ghose rule RDKit Failed
Veber rule RDKit Good
Egan rule RDKit Good
GSK 4/400 rule RDKit Good
Pfizer 3/75 rule RDKit Bad
Weighted quantitative estimate of drug-likeness (QEDw) score RDKit 0.42


2-Cyclopenten-1-one
ADME 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
Number of Brenk structural alerts SwissADME 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
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.