Valeroyl chloride CAS Number: 638-29-9
Pharmaceutical Materials 2025-03-02
CAS Number: 638-29-9
Molecular Formula: C5H9ClO
Molecular Weight: 120.58 g/mol
Appearance: Clear colorless to light yellow liquid
Melting Point: -110 °C
Boiling Point: 125-127 °C
Usage: Used as an intermediate for the synthesis of liquid crystals and pharmaceuticals.
Valeroyl chloride, also known as n-Pentanoyl chloride, with the CAS number 638-29-9, is an important organic compound primarily used as an intermediate in the synthesis of pharmaceuticals and pesticides. It is a colorless to slightly yellow, transparent, fuming oil with a pungent odor. Valeroyl chloride is highly reactive and decomposes upon contact with water, releasing hydrochloric acid and pentanoic acid. Due to its reactivity, it is primarily used in controlled environments for specific synthetic applications.
| Property | Value |
|---|---|
| CAS Number | 638-29-9 |
| Molecular Formula | C5H9ClO |
| Molecular Weight | 120.58 g/mol |
| Appearance | Colorless to slightly yellow |
| transparent oil | |
| Melting Point | -110 °C |
| Boiling Point | 125-127 °C |
| Density | 1.016 g/mL at 25 °C |
| Flash Point | 23 °C (or 74 °F) |
| Refractive Index | 1.419-1.421 |
| Solubility | Soluble in ether and other |
| organic solvents | |
| Stability | Unstable in water and ethanol, |
| decomposes readily | |
| Chemical Reactivity | Reacts with water, ethanol, |
| amines, and ammonia to form | |
| corresponding acids, alcohols, | |
| and amides |
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