1-Pentyne
ALDRICH/256560 - 99%
Synonym: Propylacetylene
CAS Number: 627-19-0
Empirical Formula (Hill Notation): C5H8
Molecular Weight: 68.12
EC Number: 210-987-1
MDL Number: MFCD00009469
Linear Formula: CH3CH2CH2C≡CH
Product Type: Chemical
| assay | 99% |
| bp | 40 °C (lit.) |
| density | 0.691 g/mL at 25 °C (lit.) |
| form | liquid |
| InChI | 1S/C5H8/c1-3-5-4-2/h1H,4- |
| InChI key | IBXNCJKFFQIKKY-UHFFFAOYSA |
| mp | −106-−105 °C (lit.) |
| Quality Level | 100  |
| refractive index | n |
| SMILES string | CCCC#C |
| vapor pressure | 6.8 psi ( 20 °C) |
| Application: | 1-Pentyne has been used in preparation of: • lithium acetylides, required for asymmetric synthesis of α,α-dibranched propargyl sulfinamides • 7-hydroxy-10-methoxy-3H-naphtho[2.1-b]pyrans |
| General description: | Selective and non-selective hydrogenation of 1-pentyne catalyzed by silica-supported palladium has been studied by in situ X-ray absorption spectroscopy. |
| Packaging: | 5, 25 g in ampule |
| Symbol |  GHS02 |
| Signal word | Danger |
| Hazard statements | H225 |
| Precautionary statements | P210 |
| Hazard Codes | F,Xn |
| Risk Statements | 11-36/37/38-65 |
| Safety Statements | 16-26-36-62 |
| RIDADR | UN 3295BE 3 / PGII |
| WGK Germany | WGK 3 |
| Flash Point(F) | -4.0 °F |
| Flash Point(C) | -20 °C |
| Purity | 99% |
| bp | 40 °C (lit.) |
| mp | −106-−105 °C (lit.) |
| Density | 0.691 g/mL at 25 °C (lit.) |
| Refractive Index | n |
| UNSPSC | 12352100 |