ethosuximide   Click here for help

GtoPdb Ligand ID: 7182

Synonyms: CI-366 | CN-10395 | PM-671 | Zarontin®
Approved drug
ethosuximide is an approved drug (FDA (1960))
Compound class: Synthetic organic
Comment: Ethosuximide is a succinimide anticonvulsant. It is often preferred over valproic acid as it does not produce the same hepatotoxicity.
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View more information in the IUPHAR Pharmacology Education Project: ethosuximide

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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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 3
Hydrogen bond donors 1
Rotatable bonds 1
Topological polar surface area 49.66
Molecular weight 141.08
XLogP 0.75
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 CC1(CC)CC(=NC1=O)O
Isomeric SMILES CC1(CC)CC(=NC1=O)O
InChI InChI=1S/C7H11NO2/c1-3-7(2)4-5(9)8-6(7)10/h3-4H2,1-2H3,(H,8,9,10)
InChI Key HAPOVYFOVVWLRS-UHFFFAOYSA-N
No information available.
Summary of Clinical Use Click here for help
Ethosuximide is used to treat absence type epileptic and myoclonic seizures.
Mechanism Of Action and Pharmacodynamic Effects Click here for help
Ethosuximide blocks activity of transient (T-type) voltage gated calcium channels. CACNA1E, CACNA1H and CACNA1I alpha subunits are detailed in this database, in the Voltage-gated calcium channels section. See the DrugBank link for further details explaining the predicted molecular mechanism of action of this drug.
External links Click here for help
For extended ADME data see the following:

Electronic Medicines Compendium (eMC)