3-Ethynylthiophene
3-Ethynylthiophene (CAS 67237-53-0, C6H4S) is a thiophene derivative with a molecular weight of 108.16 g/mol. This heterocyclic building block is primarily utilised in organic synthesis and chemical research. Its reactive ethynyl group allows for diverse chemical transformations, making it a valuable intermediate for constructing more complex molecular architectures, particularly in the fields of materials science and medicinal chemistry.
Organic Synthesis Intermediate
3-Ethynylthiophene serves as a versatile building block in the synthesis of complex organic molecules. Its alkyne functionality readily participates in various coupling reactions and cycloadditions.
Materials Science
The compound can be incorporated into polymers and functional materials due to the unique electronic properties conferred by the thiophene ring and the reactive alkyne group.
Medicinal Chemistry Research
It is employed as a synthon in the development of novel pharmaceutical agents, where the thiophene core is a common motif in biologically active compounds.
| Molecular weight | 108.16 |
|---|---|
| Empirical formula | C6H4S |
| Assay | 96% |
| Boiling point | 152-153 °C(lit.) |
| Density | 1.098 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.5800(lit.) |
Hazard statements
- H226Flammable liquid and vapour
- H315Causes skin irritation
- H318Causes serious eye damage
- H335May cause respiratory irritation
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- 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 | 46 °C / 114.8 °F |
| Transport (UN / ADR) | UN 1993C 3 / PGIII |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xi |
| Risk statements (R) | 10-37/38-41 |
| Safety statements (S) | 16-26-39 |
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 3-Ethynylthiophene used for?
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3-Ethynylthiophene is used as a building block in organic synthesis, particularly for constructing complex molecules in materials science and medicinal chemistry research.
What are the CAS number and formula for 3-Ethynylthiophene?
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The CAS number for 3-Ethynylthiophene is 67237-53-0, and its molecular formula is C6H4S.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 3-Ethynylthiophene with an assay of 96%. This product is supplied for research and development purposes and is not represented as USP, BP, or EP grade.
How should 3-Ethynylthiophene be handled safely?
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3-Ethynylthiophene is a flammable liquid and vapour (H226), causes skin irritation (H315), causes serious eye damage (H318), and may cause respiratory irritation (H335). Handle with appropriate personal protective equipment, including eyeshields, face shields, and chemical-resistant gloves, in a well-ventilated area.
Is 3-Ethynylthiophene shipped internationally?
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Yes, Tech Serve Solutions, a global supplier and exporter, can ship 3-Ethynylthiophene internationally, subject to applicable regulations.
How can I request a quote or sample for 3-Ethynylthiophene?
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To request a quote or sample for 3-Ethynylthiophene, please contact our sales department through the website or by phone.
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