C9H12
120.19 g/mol
Industrial ChemicalWarning
1,3,5-Trimethylbenzene
CAS108-67-8EC203-604-4
Category
Industrial Chemical
Compound Class
Aromatic
Primary Use
Solvent and chemical intermediate
1,3,5-Trimethylbenzene is an aromatic hydrocarbon commonly used as a solvent and chemical intermediate. It is found in coal tar and petroleum crudes and serves as a precursor in the production of dyes and UV oxidation stabilizers for plastics.
Solvent and paint thinnerChemical intermediate for dyes and UV stabilizersSynthesis of mesidine and trimesic acid
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
StrongSame Parent
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Solvent and chemical intermediate
ReferenceSame Category
3,5-xylenol
CAS108-68-9
chemical intermediate for biocides and antioxidants
ReferenceSame Category
Phloroglucinol
CAS108-73-6
Textile printing dyeing finishing agent
ReferenceSame Category
2,4,6-trimethylpyridine
CAS108-75-8
Chemical intermediate and solvent
Safety Reference
Warning
H226Flammable liquid and vapour
H335May cause respiratory irritation
H411Toxic to aquatic life with long lasting effects
H304May be fatal if swallowed and enters airways
H315Causes skin irritation
H319Causes serious eye irritation
H320Causes eye irritation
H336May cause drowsiness or dizziness
H372Causes damage to organs through prolonged or repeated exposure
H401Toxic to aquatic life
Regulatory Compliance1
- CN Catalogue of Hazardous ChemicalsCNRegulation
Customs Tariff Classification
The international HS code for 1,3,5-Trimethylbenzene (CAS 108-67-8) is 2902.90.
HS code (international, 6-digit)
2902.90
EU CN code (8-digit)
2902 90 00
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
1,3,5-trimethylbenzene
InChIKey
AUHZEENZYGFFBQ-UHFFFAOYSA-N
SMILES
CC1=CC(=CC(=C1)C)C
Synonyms (19)
- 1,3,5-Trimethylbenzene
- 2,4,6-trimethylbenzene
- 3,5-Dimethyltoluene
- Benzene, 1,3,5-trimethyl-
- Fleet-X
- Mesitylene
- Mesitylene (ACD/Name 4.0)
- Mesitylene, reagent grade
- Symmetrical trimethylbenzene
- Trimethylbenzene, 1,3,5-
- Trimethylbenzol
- s-Trimethylbenzene
- sym-Trimethylbenzene
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