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Diethyl maleate CAS 141-05-9 DEM

Colorless and transparent liquid, miscible with many organic solvents, partially soluble in benzene and chloroform, and dissolves 1.4% in water at 30℃. Water dissolves 1.9% in diethyl maleate. It forms an azeotropic mixture with 88.2% water, with an azeotropic point of 99.65℃. Diethyl maleate is a maleate ester formed by the formal condensation of two carboxyl groups of maleic acid with ethanol. It is a thiol-reactive α, β -unsaturated carbonyl compound that can consume glutathione in exposed cells.
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  • 141-05-9

Diethyl maleate Basic information
Product Name: Diethyl maleate
CAS: 141-05-9
MF: C8H12O4
MW: 172.18
EINECS: 205-451-9
Mol File: 141-05-9.mol
Diethyl maleate Chemical Properties
Melting point -10 °C (lit.)
Boiling point 225 °C (lit.)
density 1.064 g/mL at 25 °C (lit.)
vapor density 5.93 (vs air)
vapor pressure 1 mm Hg ( 14 °C)
refractive index n20/D 1.441(lit.)
Fp 200 °F
storage temp. Sealed in dry,Room Temperature
solubility 14mg/l
form Liquid
color Clear
Odor at 100.00 %. fruity banana citrus
Odor Type fruity
biological source synthetic
Water Solubility insoluble
Merck 143,123
BRN 1100825
Dielectric constant 8.6(23℃)
Stability: Stable. Combustible. Incompatible with oxidizing agents, bases, acids, reducing agents.
InChIKey IEPRKVQEAMIZSS-AATRIKPKSA-N
LogP 2.2
CAS DataBase Reference 141-05-9(CAS DataBase Reference)
NIST Chemistry Reference 2-Butenedioic acid (Z)-, diethyl ester(141-05-9)
EPA Substance Registry System 2-Butenedioic acid (2Z)-, 1,4-diethyl ester (141-05-9)

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