Agrochemicals

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

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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)

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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

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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)

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Applications

✔ Pyrethroid Synthesis: Key intermediate for:

• Cypermethrin
• Deltamethrin
• Fenvalerate
  ✔ Fragrance Industry: Floral note modifier
  ✔ Organic Synthesis: Building block for pharmaceuticals

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