2-Ethynyl-1,4-dimethylbenzene
2-Ethynyl-1,4-dimethylbenzene (CAS: 74331-70-7), with a molecular formula of HC≡CC₆H₃(CH₃)₂ and a molecular weight of 130.19 g/mol, is an organic compound featuring a terminal alkyne group. This chemical serves as a valuable building block in organic synthesis. Its structure, containing both an alkyne and a substituted benzene ring, allows for diverse chemical transformations, making it a useful intermediate in the development of more complex molecules for research and development purposes.
- Synonyms
- HC≡CC6H3(CH3)2
Organic Synthesis Intermediate
This compound functions as a key intermediate in organic synthesis, enabling the construction of carbon-carbon bonds through reactions involving its terminal alkyne functionality. It is used in the preparation of various organic molecules.
Building Block for Complex Molecules
The presence of a reactive alkyne group and an aromatic ring makes 2-Ethynyl-1,4-dimethylbenzene a versatile building block for creating more intricate molecular architectures in fields like materials science and medicinal chemistry research.
Research Chemical
Utilised in laboratory settings for R&D, this chemical allows chemists to explore novel reaction pathways and synthesise target compounds with specific functionalities.
| Molecular weight | 130.19 |
|---|---|
| Linear formula | HC≡CC6H3(CH3)2 |
| Assay | 97% |
| Boiling point | 193-194 °C(lit.) |
| Density | 0.914 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.5410(lit.) |
Hazard statements
- H225Highly flammable liquid and vapour
- H318Causes serious eye damage
Precautionary statements
- P210Keep away from heat, sparks and open flames. No smoking
- P280Wear protective gloves, clothing and eye/face protection
- 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 | -13 °C / 8.6 °F |
| Transport (UN / ADR) | UN 1993BE 3 / PGII |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | F,Xi |
| Risk statements (R) | 11-41 |
| Safety statements (S) | 16-26-36 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
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 2-Ethynyl-1,4-dimethylbenzene used for?
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2-Ethynyl-1,4-dimethylbenzene is used as a building block and intermediate in organic synthesis and for the preparation of complex molecules in research and development.
What is the CAS number and formula for 2-Ethynyl-1,4-dimethylbenzene?
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The CAS number is 74331-70-7 and the linear formula is HC≡CC₆H₃(CH₃)₂.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 2-Ethynyl-1,4-dimethylbenzene with an assay of 97%. TSS does not represent this product as USP, BP, or EP grade.
How should 2-Ethynyl-1,4-dimethylbenzene be handled?
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Handling requires adherence to safety protocols due to its flammability and potential for causing serious eye damage. Use appropriate personal protective equipment, including eyeshields, full-face respirators, and gloves. Ensure adequate ventilation and avoid ignition sources.
Is this chemical flammable?
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Yes, 2-Ethynyl-1,4-dimethylbenzene is a flammable liquid with a flash point of -13 °C (8.6 °F).
Does TSS export 2-Ethynyl-1,4-dimethylbenzene?
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Yes, Tech Serve Solutions is a global supplier and exporter of fine chemicals, including 2-Ethynyl-1,4-dimethylbenzene.
How can I request a sample or quote for 2-Ethynyl-1,4-dimethylbenzene?
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Please contact our sales team directly via phone or email to request a sample or obtain a quotation for 2-Ethynyl-1,4-dimethylbenzene.
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