1,2,4-Trimethylbenzene
1,2,4-Trimethylbenzene (CAS 95-63-6), also known as pseudocumene, is an aromatic hydrocarbon with the linear formula C<sub>6</sub>H<sub>3</sub>(CH<sub>3</sub>)<sub>3</sub> and a molecular weight of 120.19 g/mol. It is a valuable organic building block and solvent. Its primary applications include use as an intermediate in the synthesis of dyes, pharmaceuticals, and agricultural chemicals, as well as a high-octane gasoline additive.
- IUPAC
- Pseudocumene
- Synonyms
- 95-63-6Pseudocumene1,2,4-TrimethylbenzolBenzene, 1,2,4-trimethyl-
Chemical Synthesis Intermediate
1,2,4-Trimethylbenzene serves as a key intermediate in the production of various organic compounds. It is used in the synthesis of trimellitic anhydride, which finds applications in the manufacture of plasticizers, resins, and polymers.
Solvent Applications
Due to its aromatic nature and solvent properties, it is utilised as a solvent in various industrial processes. It can be found in certain formulations for paints, coatings, and cleaning agents.
Fuel Additive
1,2,4-Trimethylbenzene is a component of petroleum and is sometimes used as a high-octane additive in gasoline. Its presence can enhance the antiknock properties of fuels.
Research and Development
This compound is employed in laboratory settings for research purposes and as a starting material for the synthesis of more complex molecules in academic and industrial R&D.
| Molecular weight | 120.19 |
|---|---|
| Linear formula | C6H3(CH3)3 |
| Assay | 98% |
| Boiling point | 168 °C(lit.) |
| Density | 0.876 g/mL at 20 °C(lit.) |
| Refractive index | n20/D 1.504(lit.) |
| Vapour pressure | 4.5 mmHg (37.7 °C) |
| Melting point | −44 °C(lit.) |
| Vapour density | 4.1 (vs air) |
| Autoignition temp | 959 °F |
Hazard statements
- H226Flammable liquid and vapour
- H315Causes skin irritation
- H319Causes serious eye irritation
- H332Harmful if inhaled
- H335May cause respiratory irritation
- H411Toxic to aquatic life with long-lasting effects
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P273Avoid release to the environment
- P305IF IN EYES
| Protective equipment | Eyeshields, Faceshields, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter |
|---|---|
| Flash point | 48 °C / 118.4 °F |
| Transport (UN / ADR) | UN 3295C 3 / PGIII |
| Water hazard class (WGK, DE) | 2 |
| Hazard codes (EU) | Xn,N |
| Risk statements (R) | 10-20-36/37/38-51/53 |
| Safety statements (S) | 26-61 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
| Expl Lim | 6.4 % |
|---|
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is 1,2,4-Trimethylbenzene used for?
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1,2,4-Trimethylbenzene is primarily used as a chemical intermediate in the synthesis of dyes, pharmaceuticals, and agricultural chemicals, as well as a high-octane gasoline additive and solvent.
What is the CAS number and formula for 1,2,4-Trimethylbenzene?
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The CAS number for 1,2,4-Trimethylbenzene is 95-63-6, and its linear formula is C<sub>6</sub>H<sub>3</sub>(CH<sub>3</sub>)<sub>3</sub>.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions typically supplies 1,2,4-Trimethylbenzene with an assay of 98%. We do not represent this product as USP, BP, EP, or any other pharmacopoeia grade unless explicitly stated in the product specifications.
How should 1,2,4-Trimethylbenzene be handled safely?
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1,2,4-Trimethylbenzene is flammable (flash point 48 °C) and carries GHS hazards including skin irritation (H315), eye irritation (H319), respiratory irritation (H335), and is harmful if inhaled (H332) and toxic to aquatic life with long-lasting effects (H411). Appropriate personal protective equipment, including eyeshields, gloves, and respiratory protection, should be used in well-ventilated areas. Always consult the Safety Data Sheet (SDS) before handling.
How is 1,2,4-Trimethylbenzene shipped and exported?
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1,2,4-Trimethylbenzene is shipped and exported according to international regulations for hazardous materials, classified under UN 3295, Class 3, Packing Group III. Tech Serve Solutions adheres to all relevant shipping and export compliance requirements.
How can I request a sample or quote for 1,2,4-Trimethylbenzene?
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To request a sample or a quote for 1,2,4-Trimethylbenzene, please contact our sales department via the website or direct email, providing your specific requirements and delivery details.
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