C5H8O4
132.11 g/mol
Pharmaceutical IntermediateWarning
4-Methoxy-4-oxobutanoic acid
CAS3878-55-5EC223-408-2
Category
Pharmaceutical Intermediate
Compound Class
Ester
Primary Use
Pharmaceutical Intermediate
4-Methoxy-4-oxobutanoic acid is a chemical compound used as a pharmaceutical intermediate. It is primarily supplied for research and manufacturing applications in the pharmaceutical industry.
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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Safety Reference
Warning
H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation
Customs Tariff Classification
The international HS code for 4-Methoxy-4-oxobutanoic acid (CAS 3878-55-5) 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
4-methoxy-4-oxobutanoic acid
InChIKey
JDRMYOQETPMYQX-UHFFFAOYSA-N
SMILES
COC(=O)CCC(=O)O
Synonyms (15)
- 3-Carbomethoxypropanoic acid
- 3H-methylsuccinate
- 4-Methoxy-4-oxobutanoic acid
- DL-methylsuccinate
- Methyl hydrogen succinate
- Monomethyl succinate
- succinic acid 4-methyl ester
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