3-Phenoxybenzaldehyde
Agrochemicals 2025-03-02
3-Phenoxybenzaldehyde
Chemical Name: 3-Phenoxybenzaldehyde
Synonyms: m-Phenoxybenzaldehyde; 3-Formyldiphenyl ether
CAS Number: 39515-51-0
Molecular Formula: C₁₃H₁₀O₂
Molecular Weight: 198.22 g/mol
Physical & Chemical Properties
| Property | Specification |
|---|---|
| Appearance | Colorless to pale yellow liquid |
| Odor | Sweet, floral (similar to benzaldehyde) |
| Melting Point | 12-14°C (54-57°F) |
| Boiling Point | 175-177°C (347-351°F) at 15 mmHg |
| Density | 1.146 g/cm³ (20°C) |
| Refractive Index | 1.592-1.595 (20°C) |
| Solubility | Insoluble in water; miscible with ethanol, ether |
| Flash Point | 110°C (230°F) |
Hazard & Safety Information (GHS)
Warning Symbols:
⚠️ Skin/Eye Irritant (Category 2)
Hazard Codes:
• H315: Causes skin irritation
• H319: Causes serious eye irritation
Precautionary Measures:
• P264: Wash hands after handling
• P280: Wear gloves/eye protection
• P305+P351+P338: IF IN EYES: Rinse cautiously
Chemical Behavior
• Reactivity:
- Undergoes typical aldehyde reactions (e.g., oxidation, condensation)
- Forms Schiff bases with amines
- Air-sensitive (oxidizes slowly to 3-phenoxybenzoic acid)
• Stability: - Store under inert atmosphere (N₂)
- Light-sensitive (use amber glass)
Applications
✔ Pyrethroid Synthesis: Key intermediate for:
- Cypermethrin
- Deltamethrin
- Fenvalerate
✔ Fragrance Industry: Floral note modifier
✔ Organic Synthesis: Building block for pharmaceuticals
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