octanoyl chloride C₈H₁₅ClO
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Category：Chemical Additives Own Brand：MT /MOQ:100KG /From China/ B2B only.
Introduction
Octanoyl Chloride
Chemical Formula: C₈H₁₅ClO
Structure: Acyl chloride derivative of octanoic acid, consisting of:
- An eight-carbon chain (octanoyl group, C₇H₁₅CO-).
- A reactive carbonyl chloride group (-COCl).
Physical Properties
- Appearance: Clear, colorless to pale yellow liquid.
- Odor: Pungent.
- Reactivity:
- Moisture-sensitive: Reacts violently with water, releasing HCl gas.
- High reactivity in acylation reactions (e.g., esterification, amidation).
Applications
- Organic Synthesis:
- Introduces octanoyl groups to synthesize esters, amides, and other derivatives.
- Production of pharmaceuticals and agrochemicals.
- Industrial Chemistry:
- Manufacture of surfactants, plasticizers, and specialty polymers.
Safety Considerations ⚠️
- Health Hazards:
- Corrosive: Causes severe burns to skin, eyes, and respiratory tract.
- Releases HCl gas upon hydrolysis.
- Handling:
- Use PPE (gloves, goggles, respirator) and work in a fume hood.
- Storage:
- Store in a cool, dry, airtight container away from moisture and incompatible substances (e.g., bases, alcohols).
Basic Chemical Properties
| Property | Specification |
|---|---|
| CAS Number | 111-64-8 |
| IUPAC Name | Octanoyl chloride |
| Molecular Formula | C₈H₁₅ClO |
| Molecular Weight | 162.66 g/mol |
| Appearance | Colorless to pale yellow liquid |
| Odor | Pungent, acrid |
| Boiling Point | 195-196°C |
| Density (20°C) | 0.955-0.965 g/cm³ |
| Solubility | Reacts with water; soluble in organic solvents (ether, benzene) |
Key Functional Properties
| Characteristic | Technical Benefit |
|---|---|
| High reactivity | Effective acylating agent for esters, amides, and anhydrides |
| Low thermal stability | Decomposes at high temperatures (>200°C) |
| Moisture sensitivity | Reacts violently with water (hydrolysis) |
| Corrosivity | Attacks metals, rubber, and plastics |
Primary Applications
| Application Area | Specific Uses |
|---|---|
| Organic Synthesis | Acylating agent for pharmaceuticals, agrochemicals |
| Perfume Industry | Production of octanoate esters |
| Polymer Chemistry | Monomer for specialty polymers |
| Laboratory Reagent | Derivatization agent for analytical chemistry |
Technical Notes:
Handling & Storage:
Store under inert gas (N₂/Ar) in a cool, dry place
Use glass or PTFE-lined containers (avoid metals)
Shelf life: 12 months (unopened)
Safety & Hazards:
GHS Classification:
Skin corrosion (1A)
Serious eye damage (1)
Flammable liquid (Category 4)
PPE Required:
Chemical-resistant gloves
Face shield
Fume hood operation
Reaction Control:
Always add slowly to reaction mixtures
Use dry solvents under anhydrous conditions
Neutralize spills with dry sodium carbonate
Summary:
Octanoyl chloride’s high reactivity and acyl chloride functionality make it critical in synthesizing esters, amides, and industrial materials. Strict safety protocols are essential due to its corrosive nature and moisture sensitivity.
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