78-80-8
| Name | 2-METHYL-1-BUTEN-3-YNE |
| CAS | 78-80-8 |
| EINECS(EC#) | 201-144-9 |
| Molecular Formula | C5H6 |
| MDL Number | MFCD00008599 |
| Molecular Weight | 66.1 |
| MOL File | 78-80-8.mol |
Chemical Properties
| Appearance | Clear colorless to light yellow liquid |
| Melting point | -113 °C |
| Boiling point | 32 °C(lit.) |
| density | 0.695 g/mL at 25 °C(lit.) |
| vapor pressure | 8.96 psi ( 20 °C) |
| refractive index | n |
| Fp | 20 °F |
| storage temp. | 2-8°C |
| solubility | soluble in Chloroform, Methanol |
| form | Liquid |
| color | Clear |
| Water Solubility | Not miscible in water. |
| BRN | 969175 |
| InChI | 1S/C5H6/c1-4-5(2)3/h1H,2H2,3H3 |
| InChIKey | BOFLDKIFLIFLJA-UHFFFAOYSA-N |
| SMILES | CC(=C)C#C |
Safety Data
| Symbol(GHS) |    GHS02,GHS07,GHS08 |
| Signal word | Danger |
| Hazard statements | H224-H302-H304-H315-H319-H332-H335 |
| Precautionary statements | P280h-P301+P330+P331-P315-P403+P235-P210-P261-P301+P310-P305+P351+P338-P331 |
| Hazard Codes | F+,Xn,F,Xi |
| Risk Statements | |
| Safety Statements | |
| RIDADR | UN 3295 3/PG 1 |
| WGK Germany | 3 |
| RTECS | EN0960000 |
| F | 10-19-23 |
| HazardClass | 3 |
| PackingGroup | I |
| HS Code | 29012900 |
| Storage Class | 3 - Flammable liquids |
| Hazard Classifications | Acute Tox. 4 Oral Asp. Tox. 1 Eye Irrit. 2 Flam. Liq. 1 Skin Irrit. 2 STOT SE 3 |