3-Indoleacetonitrile

3-Indoleacetonitrile (CAS No. 771-51-7) 

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1. Basic Information

IUPAC Name: 2-(1H-Indol-3-yl)acetonitrileSynonyms:Indole-3-acetonitrileIAN3-CyanomethylindoleCAS Number: 771-51-7Molecular Formula: C₁₀H₈N₂Molecular Weight: 156.18 g/molAppearance: White to pale yellow crystalline powderOdor: Characteristic indole-like odor

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2. Physical and Chemical Properties

Property	Value
Melting Point	150–153°C (302–307°F)
Solubility	– Water: Slightly soluble (0.5 g/L at 25°C)
	– Organic solvents: Soluble in ethanol, DMSO, methanol
Log Pow	1.8 (octanol/water)
Refractive Index	1.620 (20°C)
Flash Point	>150°C (302°F) (closed cup)

 

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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 1, Reactivity 0

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4. Storage and Handling

Storage:Keep in tightly sealed amber containersStore in a cool, dry, well-ventilated areaHandling:Use nitrile gloves, safety goggles, and a fume hoodAvoid dust formation

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5. Applications

Plant Growth Regulator:Precursor to indole-3-acetic acid (IAA, a natural auxin)Pharmaceuticals:Intermediate for serotonin analogsOrganic Synthesis:Building block for heterocyclic compounds

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