IMPPAT Phytochemical information: 
9H-Pyrido[3,4-B]indole
9H-Pyrido[3,4-B]indole
Summary

SMILES: c1ccc2c(c1)[nH]c1c2ccnc1
InChI: InChI=1S/C11H8N2/c1-2-4-10-8(3-1)9-5-6-12-7-11(9)13-10/h1-7,13H
InChIKey: AIFRHYZBTHREPW-UHFFFAOYSA-N
DeepSMILES: cccccc6)[nH]cc5ccnc6
Scaffold Graph/Node/Bond level: c1ccc2c(c1)[nH]c1cnccc12
Scaffold Graph/Node level: C1CCC2C(C1)NC1CNCCC12
Scaffold Graph level: C1CCC2C(C1)CC1CCCCC12
Functional groups: cnc; c[nH]c
Chemical classification
ClassyFire Kingdom: Organic compounds
ClassyFire Superclass: Organoheterocyclic compounds
ClassyFire Class: Indoles and derivatives
ClassyFire Subclass: Pyridoindoles
NP Classifier Biosynthetic pathway: Alkaloids
NP Classifier Superclass: Tryptophan alkaloids
NP Classifier Class: Carboline alkaloids
Synonymous chemical names:
β-carboline, harman, nor, norharmane, Norharmane, Norharman, beta-carboline, 9h-pyrido[3,4-b]indole, norharman
External chemical identifiers:
CID:CID_64961; ChEMBL:CHEMBL275224; ChEBI:CHEBI:109895; ZINC:ZINC000000066039; FDASRS:94HMA1I78O; SureChEMBL:SCHEMBL25834; MolPort-000-141-389
Chemical structure download
2D:2D MOL2D MOL22D SDF
3D:3D MOL3D MOL23D SDF3D PDB3D PDBQT
9H-Pyrido[3,4-B]indole
Physicochemical properties
Property name Tool Property value
Molecular weight (g/mol) RDKit 168.2
Log P RDKit 2.72
Topological polar surface area (Å2) RDKit 28.68
Number of hydrogen bond acceptors RDKit 1
Number of hydrogen bond donors RDKit 1
Number of carbon atoms RDKit 11
Number of heavy atoms RDKit 13
Number of heteroatoms RDKit 2
Number of nitrogen atoms RDKit 2
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 11
Number of sp3 hybridized carbon atoms RDKit 0
Shape complexity RDKit 0
Number of rotatable bonds RDKit 0
Number of aliphatic carbocycles RDKit 0
Number of aliphatic heterocycles RDKit 0
Number of aliphatic rings RDKit 0
Number of aromatic carbocycles RDKit 1
Number of aromatic heterocycles RDKit 2
Number of aromatic rings RDKit 3
Total number of rings RDKit 3
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 3
9H-Pyrido[3,4-B]indole
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 Good
Weighted quantitative estimate of drug-likeness (QEDw) score RDKit 0.548949
9H-Pyrido[3,4-B]indole
ADME properties
Property nameToolProperty value
Bioavailability score SwissADME 0.55
Solubility class [ESOL] SwissADME Soluble
Solubility class [Silicos-IT] SwissADME Moderately soluble
Blood Brain Barrier permeation SwissADME Yes
Gastrointestinal absorption SwissADME High
Log Kp (Skin permeation, cm/s) SwissADME -5.08
Number of PAINS structural alerts SwissADME 0
Number of Brenk structural alerts SwissADME 0
CYP1A2 inhibitor SwissADME Yes
CYP2C19 inhibitor SwissADME No
CYP2C9 inhibitor SwissADME No
CYP2D6 inhibitor SwissADME No
CYP3A4 inhibitor SwissADME Yes
P-glycoprotein substrate SwissADME Yes
9H-Pyrido[3,4-B]indole
Human target proteins
Protein identifierHGNC symbolCombined score from STITCH database
ENSP00000367309MAOB785
ENSP00000440698DBI758
The human target proteins were predicted using STITCH, a database of Chemical-Protein interaction networks.