Products Description
What is CAS 95-93-2 ?
1,2,4,5-Tetramethylbenzene (CAS No.: 95-93-2) is an aromatic hydrocarbon compound with a molecular formula of C₁₀H₁₄ and molecular weight of 134.22 g/mol. Its molecular structure features four methyl groups symmetrically substituted at the 1,2,4,5-positions on the benzene ring, making it the isomer of tetramethylbenzene with the highest melting point.
1,2,4,5-Tetramethylbenzene appears as white or colorless crystals at room temperature with a camphor-like odor. It has a melting point of 78–81°C, boiling point of 196–197°C, liquid density of 0.838 g/mL (25°C), and solid density of 0.89 g/cm³. It is insoluble in water (solubility 0.00348 g/L) but highly soluble in organic solvents such as ethanol, diethyl ether, benzene, and acetone.
Basic Info
organic synthesis CAS 95-93-2
| Product Name | 1,2,4,5-Tetramethylbenzene |
| CAS | 95-93-2 |
| Molecular Formula | C10H14 |
| Molar Mass | 134.22 |
| Density | 0.838g/mLat 25°C(lit.) |
| Melting Point | 78 °C |
| Boling Point | 196-197 °C |
| Flash Point | 165°F |
| Water Solubility | insoluble |
| Solubility | 0.00348g/l |
| Vapor Presure | 160 mm Hg ( 140 °C) |
| Color | White to Almost white |
Uses
Approximately 90% of 1,2,4,5-tetramethylbenzene is used to produce pyromellitic dianhydride (PMDA), a key intermediate for polyimide resins, epoxy resin curing agents, and plasticizers. PMDA is widely applied in aerospace, electronic insulation materials, and other industries.
Other uses include serving as a high-boiling-point solvent for dissolving rubber and resin, as well as for synthesizing pharmaceutical intermediates, pesticide intermediates, and surfactants.
Safety Information
It should be stored in a cool, ventilated and dry place, away from fire and strong oxidants, and avoid mixing with acidic substances. It is managed as a flammable solid (UN No. 1325) for transportation, and the packaging category is III. Its highly symmetrical structure allows it to be separated from other tetramethylbenzene isomers by freeze crystallization.
Company Profile
Gneebio is a market-oriented and innovation-driven chemical company. Through technological innovation, we are committed to solving technical bottlenecks in R&D and production, optimizing production processes, and building a full product chain covering advanced intermediates, anthelmintics and pesticide products, so as to provide high-quality, green and low-cost products and services for the global pharmaceutical market.
Contact Us
Tel: +86-372-5055135
Mob: +86-13673325456
Email: wendy@gneebio.com
FAQ
What is the strength of your company?
Established in 2021, we have more than 10 years of experience in chemical industry, and we can provide more than 10,000 kinds of APIs, intermediates, reagents and dyes, which enjoys a high reputation in the industry.
What is your MOQ?
For high value products, our MOQ is 1 gram, usually 10 grams. For other low-priced products, our MOQ is 100 grams and 1 kilogram.
How do you handle quality complaints?
First of all, our quality control reduces quality problems to close to zero. If the quality problem is caused by us, we will replace the goods or refund your loss for free.
How long is the delivery time?
Small quantities of goods will be sent out within 3 working days. For bulk goods, we will reserve the space after the order is confirmed. Usually we will arrange the shipment within 7-15 days.
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