N-乙基马来酰亚胺

Description

N-Ethylmaleimide · CAS 128-53-0 · C6H7NO2. UNII O3C74ACM9V. Melting Point: 45.5.

Identification

CAS Registry Number	128-53-0
PubChem CID	4362
Molecular formula	C6H7NO2
IUPAC name	1-ethylpyrrole-2,5-dione
UNII (FDA)	O3C74ACM9V

Computed Descriptors

Molecular Weight	125.13
XLogP3	0.9
Hydrogen Bond Donor Count	0
Hydrogen Bond Acceptor Count	2
Rotatable Bond Count	1
Exact Mass	125.047678466
Monoisotopic Mass	125.047678466
Topological Polar Surface Area	37.4
Heavy Atom Count	9
Formal Charge	0

Physical & Chemical Properties

Melting Point	45.5

Physical description & handling notes

• Solid; [Merck Index] Colorless crystals; [Sigma-Aldrich MSDS]

GHS Hazard Classification

Reported hazard statements	H300 (99.1%), H301 (19%), H311 (98.6%), H314 (99.5%), H317 (99.1%)

Documented Uses

• Used in cancer research; [Merck Index] A sulfhydryl reagent that is widely used in experimental biochemical studies. [ChemIDplus]
• 1H-Pyrrole-2,5-dione, 1-ethyl-: ACTIVE
• Compounds or agents that combine with an enzyme in such a manner as to prevent the normal substrate-enzyme combination and the catalytic reaction.
• Chemical agents that react with SH groups. This is a chemically diverse group that is used for a variety of purposes. Among these are enzyme inhibition, enzyme reactivation or protection, and labelling.

Synonyms

N-ethylmaleimide; 128-53-0; ethylmaleimide; 1-ethylpyrrole-2,5-dione; 1H-pyrrole-2,5-dione, 1-ethyl-; maleimide, N-ethyl-; maleic acid N-ethylimide; O3C74ACM9V; DTXSID1059573; NSC-7638; CHEBI:44485; N Ethylmaleimide; RefChem:139181; DTXCID4033897; 204-892-4; 1-Ethyl-1H-pyrrole-2,5-dione

Frequently Asked Questions

What are the CAS number and molecular formula of N-Ethylmaleimide?

CAS 128-53-0; molecular formula C6H7NO2; molecular weight — g/mol.

What other names is N-Ethylmaleimide known by?

N-ethylmaleimide, 128-53-0, ethylmaleimide, 1-ethylpyrrole-2,5-dione, 1H-pyrrole-2,5-dione, 1-ethyl-, maleimide, N-ethyl-.

Is N-Ethylmaleimide classified as hazardous?

Hazard statements reported: H300, H301, H311, H314, H317.

What are the key physical properties of N-Ethylmaleimide?

Melting Point: 45.5.

Facts on this page are taken from PubChem (US National Library of Medicine) and Wikidata. Grade-specific data — assay, moisture, particle size, packaging, shelf life — is issued per batch on the COA and is not published here.