1-Hexyne
Pharmaceutical Materials 2025-03-02
CAS Number: 693-02-7
Molecular Formula: C6H10
Molecular Weight: 82.14 g/mol
Appearance: Colorless liquid with a special odor
Boiling Point: 71-72°C Density: 0.71 g/cm³
Flash Point: -21°C
Usage: Widely used as an intermediate in organic synthesis.
| Category | Information |
|---|---|
| Basic Information | |
| Chemical Name | 1-Hexyne |
| Other Names | n-Hex-1-yne, 1-Hexylyne, Butylacetylene |
| CAS Number | 693-02-7 |
| Chemical Formula | C6H10 |
| Molecular Weight | 82.14 g/mol |
| Physical Properties | |
| Appearance | Colorless to pale yellow liquid with a special odor |
| Density | Approximately 0.737 g/cm³ at 25°C |
| Melting Point | -131.9 to -132 °C |
| Boiling Point | 71.4 to 72 °C |
| Flash Point | -21.1 °C or -6 °F |
| Refractive Index | 1.399 at 20°C |
| Solubility | Insoluble in water, soluble in ethanol, ether, benzene, and other organic solvents |
| Chemical Properties | |
| Chemical Structure | Contains an alkyne group (C≡C) at the 1-position |
| Reactivity | Reacts with oxidizing agents, metals, and halogens |
| Applications in Organic Synthesis | Used as an intermediate in the preparation of arylalkyl substituted internal alkynes through cross-coupling reactions with aryl halides catalyzed by metals such as palladium or copper |
| Safety Information | |
| Hazard Class | Flammable liquid |
| Risk Phrases | R11 (Highly flammable), R36/37/38 (Irritating to eyes, respiratory system, and skin) |
| Safety Phrases | S16 (Keep away from sources of ignition – No smoking), S26 (In case of contact with eyes, rinse immediately with plenty of water and seek medical advice), S33 (Take precautionary measures against static discharges), S36 (Wear suitable protective clothing) |
| Storage Conditions | Store in a cool, dry, well-ventilated area away from heat, sparks, and ignition sources. Keep container tightly closed and separate from oxidants and incompatible materials. |
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