clemastine   Click here for help

GtoPdb Ligand ID: 6063

Synonyms: HS-592 | meclastin | Tavegil® | Tavist®
Approved drug Immunopharmacology Ligand
clemastine is an approved drug (FDA (1977))
Compound class: Synthetic organic
Comment: Marketed formulations contain clemastine hydrogen fumarate (PubChem CID 5281069).
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Ligand Activity Visualisation Charts

These are box plot that provide a unique visualisation, summarising all the activity data for a ligand taken from ChEMBL and GtoPdb across multiple targets and species. Click on a plot to see the median, interquartile range, low and high data points. A value of zero indicates that no data are available. A separate chart is created for each target, and where possible the algorithm tries to merge ChEMBL and GtoPdb targets by matching them on name and UniProt accession, for each available species. However, please note that inconsistency in naming of targets may lead to data for the same target being reported across multiple charts.

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View interactive charts of activity data across species

IUPHAR Pharmacology Education Project (PEP) logo

View more information in the IUPHAR Pharmacology Education Project: clemastine

2D Structure
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2D Structure

An image of the ligand's 2D structure. For small molecules with SMILES these are drawn using the NCI/CADD Chemical Identifier Resolver. Click on the image to access the chemical structure search tool with the ligand pre-loaded in the structure editor. For other types of ligands, e.g. longer nucleotides and peptides, a manually drawn representation of the molecule may be provided.

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Click here for structure editor
Physico-chemical Properties
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Physico-chemical Properties

Calculated molecular properties are available for small molecules and natural products (not peptides). Properties were generated using the CDK toolkit. All properties were selected to enable the prediction of the Lipinski Rule-of-Five profile or ‘druglikeness’ for each ligand. For more info on each category see the help pages.

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Hydrogen bond acceptors 2
Hydrogen bond donors 0
Rotatable bonds 6
Topological polar surface area 12.47
Molecular weight 343.17
XLogP 5.2
No. Lipinski's rules broken 1
SMILES / InChI / InChIKey
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SMILES / InChI / InChIKey

SMILES (Simplified Molecular Input Line Entry Specification) A specification for unambiguously describing the structure of chemical molecules using short ASCII strings. Canonical SMILES specify a unique representation of the 2D structure without chiral or isotopic specifications. Isomeric SMILES include chiral specification and isotopes.

Standard InChI (IUPAC International Chemical Identifier) and InChIKey InChI is a non-proprietary, standard, textual identifier for chemical substances designed to facilitate linking of information and database searching. An InChIKey is a simplified version of a full InChI, designed for easier web searching.

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Canonical SMILES Clc1ccc(cc1)C(c1ccccc1)(OCCC1CCCN1C)C
Isomeric SMILES Clc1ccc(cc1)[C@@](c1ccccc1)(OCC[C@H]1CCCN1C)C
InChI InChI=1S/C21H26ClNO/c1-21(17-7-4-3-5-8-17,18-10-12-19(22)13-11-18)24-16-14-20-9-6-15-23(20)2/h3-5,7-8,10-13,20H,6,9,14-16H2,1-2H3/t20-,21-/m1/s1
InChI Key YNNUSGIPVFPVBX-NHCUHLMSSA-N
Classification Click here for help
Compound class Synthetic organic
Approved drug? Yes (FDA (1977))
IUPAC Name Click here for help
(2R)-2-[2-[(1R)-1-(4-chlorophenyl)-1-phenylethoxy]ethyl]-1-methylpyrrolidine
International Nonproprietary Names Click here for help
INN number INN
2231 clemastine
Synonyms Click here for help
HS-592 | meclastin | Tavegil® | Tavist®
Database Links Click here for help
Specialist databases
GPCRdb Ligand clemastine
Other databases
CAS Registry No. 15686-51-8
ChEMBL Ligand CHEMBL1626
DrugBank Ligand DB00283
DrugCentral Ligand 671
GtoPdb PubChem SID 178102684
PubChem CID 26987
Search Google for chemical match using the InChIKey YNNUSGIPVFPVBX-NHCUHLMSSA-N
Search Google for chemicals with the same backbone YNNUSGIPVFPVBX
Search PubMed clinical trials clemastine
Search PubMed titles clemastine
Search PubMed titles/abstracts clemastine
UniChem Compound Search for chemical match using the InChIKey YNNUSGIPVFPVBX-NHCUHLMSSA-N
UniChem Connectivity Search for chemical match using the InChIKey YNNUSGIPVFPVBX-NHCUHLMSSA-N
Wikipedia Clemastine