3-Pyridinecarboxaldehyde

Agrochemicals 2025-03-02

3-Pyridinecarboxaldehyde (CAS No. 500-22-1) 


1. Basic Information

  • IUPAC Name: Pyridine-3-carbaldehyde
  • Synonyms:
    • Nicotinaldehyde
    • 3-Formylpyridine
  • CAS Number: 500-22-1
  • Molecular Formula: C₆H₅NO
  • Molecular Weight: 107.11 g/mol
  • Appearance: Colorless to pale yellow liquid
  • Odor: Pungent, pyridine-like odor

2. Physical and Chemical Properties

Property Value
Boiling Point 85–87°C (185–189°F) at 15 mmHg
Density 1.13 g/cm³ (20°C)
Refractive Index 1.550–1.552 (20°C)
Flash Point 72°C (162°F) (closed cup)
Solubility – Water: Partially soluble
– Organic solvents: Miscible with ethanol, ether, acetone
Vapor Pressure 0.3 mmHg at 25°C

 


3. Hazards (GHS Classification)

  • Health Hazards:
    • Harmful if swallowed (H302)
    • Causes skin irritation (H315)
    • Causes serious eye irritation (H319)
  • Environmental: Toxic to aquatic life (H411)
  • NFPA Rating: Health 2, Flammability 2, Reactivity 1

4. Storage and Handling

  • Storage:
    • Keep in tightly sealed amber containers under nitrogen
    • Store in a cool, dry, well-ventilated area
  • Handling:
    • Use nitrile glovessafety goggles, and a fume hood
    • Avoid contact with strong oxidizers

5. Applications

  • Pharmaceuticals:
    • Intermediate for antihypertensive drugs (e.g., nifedipine)
  • Agrochemicals:
    • Building block for pesticides
  • Organic Synthesis:
    • Precursor for Schiff bases and heterocycles

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