IMPPAT Phytochemical information: 
Octadecamethylcyclononasiloxane
Octadecamethylcyclononasiloxane
Summary

SMILES: C[Si]1(C)O[Si](C)(C)O[Si](C)(C)O[Si](C)(C)O[Si](C)(C)O[Si](O[Si](O[Si](O[Si](O1)(C)C)(C)C)(C)C)(C)C
InChI: InChI=1S/C18H54O9Si9/c1-28(2)19-29(3,4)21-31(7,8)23-33(11,12)25-35(15,16)27-36(17,18)26-34(13,14)24-32(9,10)22-30(5,6)20-28/h1-18H3
InChIKey: ISXOGOLHEGHGQF-UHFFFAOYSA-N
DeepSMILES: C[Si]C)O[Si]C)C)O[Si]C)C)O[Si]C)C)O[Si]C)C)O[Si]O[Si]O[Si]O[Si]O%18)C)C)))C)C)))C)C)))C)C
Scaffold Graph/Node/Bond level: O1[SiH2]O[SiH2]O[SiH2]O[SiH2]O[SiH2]O[SiH2]O[SiH2]O[SiH2]O[SiH2]1
Scaffold Graph/Node level: O1[SiH2]O[SiH2]O[SiH2]O[SiH2]O[SiH2]O[SiH2]O[SiH2]O[SiH2]O[SiH2]1
Scaffold Graph level: C1CCCCCCCCCCCCCCCCC1
Functional groups: C[Si]1(C)O[Si](C)(C)O[Si](C)(C)O[Si](C)(C)O[Si](C)(C)O[Si](C)(C)O[Si](C)(C)O[Si](C)(C)O[Si](C)(C)O1
Chemical classification
ClassyFire Kingdom: Organic compounds
ClassyFire Superclass: Organometallic compounds
ClassyFire Class: Organometalloid compounds
ClassyFire Subclass: Organosilicon compounds
NP Classifier Biosynthetic pathway: Fatty acids
NP Classifier Superclass: Fatty Acids and Conjugates
Synonymous chemical names:
cyclonona siloxane, octadeca methyl, octadeca methyl cyclononasiloxane
External chemical identifiers:
CID:11172; FDASRS:28W8JYZ0C6; SureChEMBL:SCHEMBL9009704
Chemical structure download
2D:2D MOL2D MOL22D SDF
3D:3D MOL3D MOL23D SDF3D PDB3D PDBQT
Octadecamethylcyclononasiloxane
Physicochemical properties
Property name Tool Property value
Molecular weight (g/mol) RDKit 667.4
Log P RDKit 6.47
Topological polar surface area (Å2) RDKit 83.07
Number of hydrogen bond acceptors RDKit 9
Number of hydrogen bond donors RDKit 0
Number of carbon atoms RDKit 18
Number of heavy atoms RDKit 36
Number of heteroatoms RDKit 18
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 0
Number of sp3 hybridized carbon atoms RDKit 18
Shape complexity RDKit 1
Number of rotatable bonds RDKit 0
Number of aliphatic carbocycles RDKit 0
Number of aliphatic heterocycles RDKit 1
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 1
Number of saturated rings RDKit 1
Number of Smallest Set of Smallest Rings (SSSR) RDKit 1
Octadecamethylcyclononasiloxane
Drug-likeness properties
Property nameToolProperty value
Number of Lipinski’s rule of 5 violations RDKit 2
Lipinski’s rule of 5 filter RDKit Failed
Number of Ghose filter violations RDKit 4
Ghose filter RDKit Failed
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 0.2704
Octadecamethylcyclononasiloxane
ADMET properties
Property nameToolProperty value
Bioavailability score SwissADME 0.55
Solubility class [ESOL] SwissADME Poorly soluble
Solubility class [Silicos-IT] SwissADME Moderately soluble
Blood Brain Barrier permeation SwissADME No
Gastrointestinal absorption SwissADME Low
Log Kp (Skin permeation, cm/s) SwissADME -3.95
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 No
CYP2D6 inhibitor SwissADME No
CYP3A4 inhibitor SwissADME No
P-glycoprotein substrate SwissADME Yes