| Product Name | 1,4-Dichloro-2-butyne |
| CAS No. | 821-10-3 |
| Synonyms | Dichlorobutyne; 1,4-dichlorobut-2-yne; 1,4-dichlorobut-1-yne |
| InChI | InChI=1/C4H4Cl2/c5-3-1-2-4-6/h1,3H2 |
| Molecular Formula | C4H4Cl2 |
| Molecular Weight | 122.9806 |
| Density | 1.222g/cm3 |
| Boiling point | 135.4°C at 760 mmHg |
| Flash point | 39.7°C |
| Refractive index | 1.474 |
| Hazard Symbols |  T:Toxic; |
| Risk Codes | R23/24/25:; R36/37/38:; R40:; |
| Safety | S26:; S28A:; S36/37/39:; S38:; S45:; |
821-10-3 1,4-dichloro-2-butyne
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