C9H8O4
180.16 g/mol
Industrial ChemicalWarning
5-Methylisophthalic acid
CAS499-49-0EC207-881-2
Category
Industrial Chemical
Compound Class
Organic Acid
Primary Use
Chemical intermediate for polymer synthesis
5-Methylisophthalic acid is an organic compound featuring a benzene ring substituted with two carboxylic acid groups and one methyl group. It serves as a chemical intermediate primarily used in polymer synthesis.
Chemical intermediate for polymer synthesisBuilding block for specialty 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 0.89
3,5-dimethylbenzoic acid
CAS499-06-9
chemical intermediate for synthesis
ReferenceSame Category
Sodium 3-fluorobenzoate
CAS499-57-0
Fluorinated benzoate salt intermediate
ReferenceSame Category
Formaldehyde
CAS50-00-0
disinfectant and preservative
ReferenceSame Category
2,5-dichlorobenzoic acid
CAS50-79-3
chemical intermediate for synthesis
ReferenceSame Category
4-methylsalicylic acid
CAS50-85-1
chemical intermediate for synthesis
Safety Reference
Warning
H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation
Customs Tariff Classification
The international HS code for 5-Methylisophthalic acid (CAS 499-49-0) 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
5-methylbenzene-1,3-dicarboxylic acid
InChIKey
PMZBHPUNQNKBOA-UHFFFAOYSA-N
SMILES
CC1=CC(=CC(=C1)C(=O)O)C(=O)O
Synonyms (9)
- 5-Methylisophthalic acid
- 5-methyl-1,3-benzoic acid
- Isophthalic acid, 5-methyl-
- UVITIC ACID
- Uvitinsaure
- toluene-3,5-dicarboxylic acid
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