627-21-4
627-21-4 structure
- Name: Pent-2-yne
- Chemical Name: pent-2-yne
- CAS Number: 627-21-4
- Molecular Formula: C5H8
- Molecular Weight: 68.117
- Catalog: Chemical reagent Organic reagent Alkyne
- Create Date: 2018-08-21 00:10:40
- Modify Date: 2025-08-20 19:39:20
| Name | pent-2-yne |
|---|---|
| Synonyms |
1-Ethyl-2-methylacetylene
MFCD00009380 Ethylmethylacetylene Pent-2-in 2-Pentyne EINECS 210-989-2 trans 2-pentyne |
| Density | 0.7±0.1 g/cm3 |
|---|---|
| Boiling Point | 56.7±3.0 °C at 760 mmHg |
| Melting Point | −109 °C(lit.) |
| Molecular Formula | C5H8 |
| Molecular Weight | 68.117 |
| Flash Point | -28.1±11.2 °C |
| Exact Mass | 68.062599 |
| LogP | 1.99 |
| Vapour Pressure | 237.4±0.0 mmHg at 25°C |
| Index of Refraction | 1.407 |
| Storage condition | Flammables area |
| Hazard Codes | F: Flammable;Xi: Irritant; |
|---|---|
| Risk Phrases | R11 |
| Safety Phrases | S16-S26-S36/37/39 |
| RIDADR | UN 3295 3/PG 2 |
| WGK Germany | 3 |
| Packaging Group | II |
| Hazard Class | 3 |
| Precursor 10 | |
|---|---|
| DownStream 10 | |
