| Product Name | 2-Ethynylthiophene |
| CAS No. | 4298-52-6 |
| Synonyms | Thiophene, 2-ethynyl- |
| InChI | InChI=1/C6H4S/c1-2-6-4-3-5-7-6/h1,3-5H |
| Molecular Formula | C6H4S |
| Molecular Weight | 108.161 |
| Density | 1.11g/cm3 |
| Boiling point | 150°C at 760 mmHg |
| Flash point | 28.4°C |
| Refractive index | 1.571 |
| Hazard Symbols |  Xi:Irritant; |
| Risk Codes | R10:; R36/37/38:; |
| Safety | S16:; S23:; S26:; S36/37/39:; |
4298-52-6 2-ethynylthiophene
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