C8H12O4
172.18 g/mol
Research ReagentWarning
DIETHYL MALEATE
CAS141-05-9EC205-451-9
Category
Research Reagent
Compound Class
Ester
Primary Use
Research Compound
Diethyl maleate is a maleate ester formed from maleic acid and ethanol. It appears as a colorless liquid at room temperature and is primarily used as a dienophile in Diels-Alder cycloaddition reactions in organic synthesis.
dienophile in Diels-Alder reactionsglutathione depleting agentflavoring agent
Content scope: Information here supports chemical identification and industrial supply, research, and manufacturing contexts. It is not a therapeutic claim, medical advice, or drug-use instructions.
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Related Compounds
StrongForm Family
Diethyl sulfate
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Ethylating agent in chemical synthesis
StrongForm Family
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StrongForm Family
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research reagent
SimilarStructure SimilarSimilarity 0.80
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chemical intermediate for research and industrial use
SimilarStructure SimilarSimilarity 0.75
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flavor and fragrance ingredient
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Safety Reference
Warning
H317May cause an allergic skin reaction
H319Causes serious eye irritation
H412Harmful to aquatic life with long lasting effects
H227
H320Causes eye irritation
H402Harmful to aquatic life
Customs Tariff Classification
The international HS code for DIETHYL MALEATE (CAS 141-05-9) is 2917.19.
HS code (international, 6-digit)
2917.19
EU CN code (8-digit)
2917 19 80
Classification per the EU customs inventory ECICS (2026-07 snapshot, HS 2022). National tariff lines and product form can affect the final classification.
Identifiers
IUPAC Name
diethyl (Z)-but-2-enedioate
InChIKey
IEPRKVQEAMIZSS-WAYWQWQTSA-N
SMILES
CCOC(=O)/C=C\C(=O)OCC
Synonyms (25)
- DIETHYL MALEATE
- Diethyl (2E)-2-butenedioate
- Diethyl (2Z)-2-butenedioate #
- Diethyl (Z)-2-butenedioate
- Maleic acid, diethyl ester
- STAFLEX DEM
- diethyl (2Z)-but-2-enedioate
- diethyl (Z)-but-2-enedioate
- diethyl maleic acid diester
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