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141-05-9

141-05-9 Structure

141-05-9 Structure
IdentificationMore
[Name]

Diethyl maleate
[CAS]

141-05-9
[Synonyms]

2-BUTENEDIOIC ACID (Z)-, DIETHYL ESTER
CIS-DIETHYL-2-BUTENEDIOATE
DEM
DIETHYL-2-HYDROXYBUTANEDIOATE
DIETHYL MALEATE
ETHYL MALEATE
MALEIC ACID DIETHYL ESTER
(Z)-2-BUTENEDIOIC ACID DIETHYL ESTER
(Z)-DIETHYL-2-HYDROXYBUTENEDIOATE
Diethyl (2Z)-2-butenedioate
Diethylester kyseliny maleinove
diethylesterkyselinymaleinove
kIaleins5urediαthylester
cis-Propenoic acid diethyl ester
Diethyl malcate
DIETHYL MALEATE 96+%
Diethyl maleate, remainder ca.10% diethyl fumarate, ca.90%
2-Butenedioic acid (2Z)-, diethyl ester
Diethylbutenedioate
Diethyl (Z)-but-2-enedioate
[EINECS(EC#)]

205-451-9
[Molecular Formula]

C8H12O4
[MDL Number]

MFCD00009191
[Molecular Weight]

172.18
[MOL File]

141-05-9.mol
Chemical PropertiesBack Directory
[Appearance]

colourless liquid
[mp ]

−10 °C(lit.)
[Melting point ]

-10 °C (lit.)
[Boiling point ]

225 °C (lit.)
[bp ]

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
[Stability:]

Stable. Combustible. Incompatible with oxidizing agents, bases, acids, reducing agents.
[Water Solubility ]

insoluble
[Merck ]

14,3123
[BRN ]

1100825
[InChIKey]

IEPRKVQEAMIZSS-AATRIKPKSA-N
[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]

141-05-9(EPA Substance)
Safety DataBack Directory
[Hazard Codes ]

Xi
[Risk Statements ]

R36:Irritating to the eyes.
R43:May cause sensitization by skin contact.
[Safety Statements ]

S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S36/37:Wear suitable protective clothing and gloves .
S37:Wear suitable gloves .
S24:Avoid contact with skin .
[RIDADR ]

3334
[WGK Germany ]

2
[RTECS ]

ON1225000
[Autoignition Temperature]

662 °F
[TSCA ]

Yes
[HS Code ]

29171990
[Toxicity]

LD50 orally in rats: 0.30 g/kg (Smyth)
Raw materials And Preparation ProductsBack Directory
【Raw materials】

Maleic anhydride-->Phenethyl alcohol-->AMBERLITE(R) IRC-50
【Preparation Products】

Malathion-->5-Methoxymethyl-2,3-pyridinedicarboxylic acid-->Fluorene-9-acetic acid-->3-(2-CHLOROPHENYL)PROPIONIC ACID-->Diethyl 2,3-dichlorobutanedioate-->Monoethyl fumarate-->Diethyl malate-->Ethyl ethoxyacetate
Material Safety Data Sheet(MSDS)Back Directory
[msds information]

Diethyl maleate(141-05-9).msds
Hazard InformationBack Directory
[Chemical Properties]

colourless liquid
[Chemical Properties]

It is a clear liquid between the temperatures of -10°C (pour point) and 225°C (boiling point). Diethyl maleate is soluble in alcohol and ether is insoluble in water.
[Occurrence]

Has apparently not been reported to occur in nature.
[Uses]

In organic synthesis.
[Uses]

Diethyl maleate is unsaturated polyester resins that are used in applications, such as reinforced glass fiber for boats, piping, bathtubs, roof panels, etc., and as protective coatings, finishes, and lacquers.
[Preparation]

By direct esterification of maleic acid with ethyl alcohol (Arctander, 1969).
[Production Methods]

Diethyl maleate is formed by the direct esterification of maleic acid with ethyl alcohol.
[Metabolism]

α/β-Unsaturated compounds, such as diethyl maleate, react enzymically with gluta thione. The reaction has been demonstrated in fractions of rat liver (Boyland & Chasseaud, 1967) and avian liver (Wit & Snel, 1968). The enzyme differs from other known S-alkyl, S-aryl and S- epoxide transferase enzymes responsible for glutathione-conjugate formation (Boyland & Chasseaud, 1967). Diethyl maleate, administered parenterally to rats, reduced the hepatic glutathione content (Boyland & Chasseaud, 1970; Varga, Fischer & Szily, 1974). The latter workers also showed that diethyl maleate pretreatment of rats inhibited the glutathione conjugation of subsequently-adminis tered bromsulphthalein.
Spectrum DetailBack Directory
[Spectrum Detail]

Diethyl maleate(141-05-9) 1H NMR
Diethyl maleate(141-05-9) MS
Diethyl maleate(141-05-9) Raman
Diethyl maleate(141-05-9) 13C NMR
Diethyl maleate(141-05-9) IR1
Well-known Reagent Company Product InformationBack Directory
[Acros Organics]

Diethyl maleate, remainder ca.10% diethyl fumarate, ca.90%(141-05-9)
[Alfa Aesar]

Diethyl maleate, 97%(141-05-9)
[Sigma Aldrich]

141-05-9(sigmaaldrich)
[TCI AMERICA]

Diethyl Maleate,>90.0%(GC)(141-05-9)
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