methacholine   Click here for help

GtoPdb Ligand ID: 7438

Synonyms: methacholine bromide | Provocholine®
Approved drug Immunopharmacology Ligand
methacholine is an approved drug (FDA (1986))
Compound class: Synthetic organic
Comment: The approved drug is methacholine chloride PubChem CID 6114. Note that the approved drug is a racemic mixture of enantiomers. We show the non-chiral molecule to represent this mixture.
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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
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 4
Topological polar surface area 26.3
Molecular weight 160.13
XLogP 0.36
No. Lipinski's rules broken 0
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 CC(C[N+](C)(C)C)OC(=O)C
Isomeric SMILES CC(C[N+](C)(C)C)OC(=O)C
InChI InChI=1S/C8H18NO2/c1-7(11-8(2)10)6-9(3,4)5/h7H,6H2,1-5H3/q+1
InChI Key NZWOPGCLSHLLPA-UHFFFAOYSA-N
Classification Click here for help
Compound class Synthetic organic
Approved drug? Yes (FDA (1986))
IUPAC Name Click here for help
2-acetyloxypropyl-trimethylazanium
International Nonproprietary Names Click here for help
INN number INN
3161 methacholine chloride
Synonyms Click here for help
methacholine bromide | Provocholine®
Database Links Click here for help
Specialist databases
GPCRdb Ligand methacholine
Other databases
CAS Registry No. 55-92-5 (source: SciFinder)
ChEBI CHEBI:6804
ChEMBL Ligand CHEMBL978
DrugBank Ligand DB06709
DrugCentral Ligand 1726
GtoPdb PubChem SID 178104010
PubChem CID 1993
Search Google for chemical match using the InChIKey NZWOPGCLSHLLPA-UHFFFAOYSA-N
Search Google for chemicals with the same backbone NZWOPGCLSHLLPA
Search PubMed clinical trials methacholine chloride
Search PubMed titles methacholine chloride
Search PubMed titles/abstracts methacholine chloride
UniChem Compound Search for chemical match using the InChIKey NZWOPGCLSHLLPA-UHFFFAOYSA-N
UniChem Connectivity Search for chemical match using the InChIKey NZWOPGCLSHLLPA-UHFFFAOYSA-N
Wikipedia Methacholine