2-Phenylethyl isocyanate CAS Number: 1943-82-4
Pharmaceutical Materials 2025-03-02
Chemical Name: 2-Phenylethyl isocyanate.
CAS Number: 1943-82-4.
Molecular Formula: C9H9NO. Molecular Weight: 147.174 g/mol.
Appearance: Clear colorless liquid. Boiling Point: 210-228.5°C.
Density: 1.063 or 1.0±0.1 g/mL at 25°C. Flash Point: 67.4 or 212°F.
2-Phenylethyl isocyanate, also known as phenethyl isocyanate, is an organic compound with the CAS number 1943-82-4. It is a transparent colorless liquid with a distinct odor and is primarily used as a key intermediate in the synthesis of the hypoglycemic drug glimepiride, which is a new generation of sulfonylureas used to treat type 2 diabetes. This compound is reactive and requires careful handling, storage in a cool, dry place, and good ventilation or exhaust equipment in the workplace.
| Property | Value |
|---|---|
| CAS Number | 1943-82-4 |
| Chemical Name | 2-Phenylethyl isocyanate |
| Molecular Formula | C9H9NO |
| Molecular Weight | 147.174 g/mol |
| Appearance | Transparent colorless liquid |
| Density | ~1.0 g/cm³ (may vary slightly) |
| Boiling Point | 228.5 °C |
| Flash Point | 67.4 °C |
| Refractive Index | ~1.514-1.522 |
| Vapor Pressure | 0.1 mmHg at 25 °C |
| Water Solubility | Decomposes in water |
| Stability | Stable if used and stored according to specifications, avoid oxides |
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