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You are here:Home » Biochemicals » Biochem-Maleimide, MTS & Sulfhydryl » N-Ethyl Maleimide

N-Ethyl Maleimide

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Specifications

Reagent for the covalent modification of cysteine residues in proteins. NEM gives a clear solution in ethanol at 50 mg/ml. NEM dissolves in water (>50 mg in 4 ml); however, aqueous solutions are unstable. The rate of hydrolysis is pseudo-first order and significantly dependent on pH.
Catalog #011357
SolubilityAs Reported
Melting PointAs Reported
Method for Determining IdentityProton NMR (CDCl3) Spectroscopic and Mass Spectrometric Analysis
TLC ConditionsAs Reported
Storage and StabilityMay be stored at RT for short-term only. Long-term storage is recommended at 4°C. For maximum recovery of product, centrifuge the original vial prior to removing the cap.
Important NoteThis product as supplied is intended for research use only, not for use in human, therapeutic or diagnostic applications without the expressed written authorization of United States Biological.
Toxicity and Hazards 
All products should be handled by qualified personnel only, trained in laboratory procedures.
CAS Number128-53-0
Molecular FormulaC6H7NO2
Molecular Weight125.13
SourceSynthetic
Purity~90%
FormAs Reported
Important NoteThis product as supplied is intended for research use only, not for use in human, therapeutic or diagnostic applications without the expressed written authorization of United States Biological.
Alternate names1-Ethyl-1H-pyrrole-2,5-dione; 1-Ethyl-1H-pyrrole-2,5-dione; Ethylmaleimide; Maleic Acid N-Ethylimide; NEM; NSC 7638;


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