C6H8O4
144.12 g/mol
OtherWarning
Monoethyl fumarate
CAS2459-05-4EC219-544-7
Category
Other
Compound Class
n.a
Primary Use
chemical intermediate for research and industrial use
Monoethyl fumarate is a chemical compound that is a mono-ester of fumaric acid, containing both a carboxylic acid and an ester functional group. It is used as an intermediate in organic synthesis and industrial chemical manufacturing.
intermediate in organic synthesisindustrial chemical manufacturing
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
SimilarStructure SimilarSimilarity 0.80
Diethyl fumarate
CAS623-91-6
Comonomer for polymer production
SimilarStructure SimilarSimilarity 0.80
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research compound
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CAS247069-27-8
research intermediate
Safety Reference
Warning
H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation
Customs Tariff Classification
The international HS code for Monoethyl fumarate (CAS 2459-05-4) 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
(E)-4-ethoxy-4-oxobut-2-enoic acid
InChIKey
XLYMOEINVGRTEX-ONEGZZNKSA-N
SMILES
CCOC(=O)/C=C/C(=O)O
Synonyms (23)
- Quetiapine EP Impurity R
- CAS-3249-53-4
- Ethyl fumarate
- Ethyl hydrogen maleate
- Ethylhydrogenfumarat
- Fumaric acid monoethyl ester
- Fumaric acid, ethyl ester
- MONOETHYL (2Z)-2-BUTENEDIOATE
- Monoethyl fumarate
- Quetiapine Impurity 17
- ethylhydrogenfumarate
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