C8H2F4O4
238.09 g/mol
Industrial ChemicalWarning
2,3,5,6-Tetrafluoroterephthalic acid
CAS652-36-8EC211-489-7
Category
Industrial Chemical
Compound Class
Organic Acid
Primary Use
Industrial chemical intermediate
2,3,5,6-Tetrafluoroterephthalic acid is a fluorinated aromatic dicarboxylic acid used as an industrial chemical intermediate. Its structure features a benzene ring substituted with four fluorine atoms and two carboxylic acid groups, making it a building block for specialty polymers and other advanced materials.
Industrial chemical intermediateMonomer for fluorinated polymers
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
StrongStructure SimilarSimilarity 0.93
Pentafluorobenzoic acid
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research compound
SimilarStructure SimilarSimilarity 0.76
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Liquid crystal intermediate
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hydroquinone derivative intermediate
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chemical intermediate for synthesis
ReferenceSame Category
1,8-Dimethylcarbazole
CAS6558-83-4
Electronic chemical intermediate
Safety Reference
Warning
H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation
Customs Tariff Classification
The international HS code for 2,3,5,6-Tetrafluoroterephthalic acid (CAS 652-36-8) is 2917.39.
HS code (international, 6-digit)
2917.39
EU CN code (8-digit)
2917 39 85
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
2,3,5,6-tetrafluoroterephthalic acid
InChIKey
WFNRNCNCXRGUKN-UHFFFAOYSA-N
SMILES
C1(=C(C(=C(C(=C1F)F)C(=O)O)F)F)C(=O)O
Synonyms (12)
- Tetrafluoroterephthalic acid
- perfluoroterephthalic acid
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