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E7138

Sigma-Aldrich

Ethosuximide

Synonym(s):

2-Ethyl-2-methylsuccinimide

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About This Item

Empirical Formula (Hill Notation):
C7H11NO2
CAS Number:
77-67-8
Molecular Weight:
141.17
EC Number:
201-048-7
MDL number:
MFCD00072123
UNSPSC Code:
12352111
PubChem Substance ID:
24278423
NACRES:
NA.77

solubility

ethanol: 100 mg/mL

SMILES string

O=C1NC(CC1(C)CC)=O

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

Gene Information

human ... CACNA1G(8913) , CACNA1H(8912) , CACNA1I(8911)

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Application

Ethosuximide has been used:
  • to confirm its effect on spike wave discharges (SWD) in rats
  • to examine its effects on spontaneous locomotion and anxiety-related thigmotaxis behaviours in zebrafish larvae of wild type
  • as a model drug for the treatment of epilepsy in vivo(4)

Biochem/physiol Actions

Ethosuximide is an anticonvulsant drug and an antagonist for T-type calcium channel. It is known to prevent spike wave discharges, characterized in absence seizures.

Features and Benefits

This compound is featured on the Calcium Channels page of the Handbook of Receptor Classification and Signal Transduction. To browse other handbook pages, click here.

Pictograms

Exclamation mark
GHS07

Signal Word

Warning

Hazard Statements

H302

Precautionary Statements

P264 - P270 - P301 + P312 - P501

Hazard Classifications

Acute Tox. 4 Oral

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Self-assembling PVA-F127 thermosensitive nanocarriers with highly sensitive magnetically-triggered drug release for epilepsy therapy in vivo
Huang HY, et al.
Journal of Materials Chemistry, 22(17), 8566-8573 (2012)
N Leresche et al.
The Journal of neuroscience : the official journal of the Society for Neuroscience, 18(13), 4842-4853 (1998-06-23)
The action of ethosuximide (ETX) on Na+, K+, and Ca2+ currents and on tonic and burst-firing patterns was investigated in rat and cat thalamic neurons in vitro by using patch and sharp microelectrode recordings. In thalamocortical (TC) neurons of the
Behavioural responses of zebrafish larvae to acute ethosuximide exposure
Ji Y, et al.
Behavioural Pharmacology, 28(6), 428-440 (2017)
Spike-wave discharges in adult Sprague-Dawley rats and their implications for animal models of temporal lobe epilepsy
Pearce PS, et al.
Epilepsy & Behavior : E&B, 32, 121-131 (2014)
Tracy A Glauser et al.
Epilepsia, 54(1), 141-155 (2012-11-22)
Determine the optimal initial monotherapy for children with newly diagnosed childhood absence epilepsy (CAE) based on 12 months of double-blind therapy. A double-blind, randomized controlled clinical trial compared the efficacy, tolerability, and neuropsychological effects of ethosuximide, valproic acid, and lamotrigine
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