Ligand profile

ZINC19892

Virtual-screening candidate from ZINC.

Bound to: KP13_01863 — Carbonic anhydrase 2

Via homolog UniProt P53615 Formula C₁₄H₁₂ClN₃O₂S
Tanimoto 0.83
Mol. weight 321.79 Da
Permeability High
PAINS Clean

Identifiers

Database identifiers and provenance.

Ligand ID
ZINC19892
UniProt (similar protein)
P53615
Tanimoto
0.829
Target protein
KP13_01863

Structure

2D representation rendered from SMILES.

Physicochemical properties

Computed with RDKit from SMILES.

Molecular weight 321.79 Da
LogP (Crippen) 3.20
H-bond donors 3
H-bond acceptors 3
TPSA 87.98 Ų
Rotatable bonds 3
Aromatic rings 3 / 3
Heavy atoms 21
Fraction sp³ C 0.00
Formula C₁₄H₁₂ClN₃O₂S

Drug-likeness

Descriptor-based ADME screening flags from SMILES. These are not experimental toxicity results.

Permeability proxy High

Estimated from TPSA and LogP only: TPSA ≤ 90 Ų and −1 ≤ LogP ≤ 5 are treated as a favorable small-molecule permeability screen.

  • TPSA ≤ 90 Ų 88.0
  • −1 ≤ LogP ≤ 5 3.20
Lipinski's Rule of Five Pass 0 violations
  • MW ≤ 500 Da 321.8
  • LogP ≤ 5 3.20
  • H-bond donors ≤ 5 3
  • H-bond acceptors ≤ 10 3
Veber's rules Pass
  • Rotatable bonds ≤ 10 3
  • TPSA ≤ 140 Ų 88.0
PAINS Clean

No PAINS structural alerts detected.

Chemical representations

Canonical representations for cheminformatics workflows.

SMILES 
Nc1ccc(S(=O)(=O)Nc2cccc3c(Cl)c[nH]c23)cc1
InChI 
InChI=1S/C14H12ClN3O2S/c15-12-8-17-14-11(12)2-1-3-13(14)18-21(19,20)10-6-4-9(16)5-7-10/h1-8,17-18H,16H2
InChIKey 
BBZBFSPWJFJXHM-UHFFFAOYSA-N

Provenance

Annotation context from LigQ_2, the internal Target step that collects PDB, ChEMBL, and ZINC ligand evidence.

Method
LigQ nearest_k
Query
EF6
Homolog
P53615

External resources

Open this ligand in third-party databases and cheminformatics tools.

Other ligands for this protein

Quick navigation to other ligands bound to KP13_01863.

PDB 5

Ligands co-crystallized with this protein (structural evidence).

Ligand PDB entry

ChEMBL 100

Compounds with measured inhibitory activity on this target (higher pchembl = more potent).

Compound Potency (pchembl)

ZINC 49

Virtual screening candidates selected by structural similarity to known actives (Tanimoto ≥ 0.5).

Compound Similarity (Tanimoto)