1-Octylimidazole, CAS: 21252-69-7

Key Applications:

1. Precursor for Ionic Liquid and Surfactant Synthesis

• Serves as an alkylated imidazole building block for preparing hydrophobic imidazolium salts.
• Enables formulation of room‑temperature ionic liquids with enhanced viscosity, low volatility, and strong solvating power.
• Useful for tailoring amphiphilic ionic liquids for extraction, catalysis, and electrochemical media.

2. Phase‑Transfer and Solubilizing Agent

• The C8 alkyl chain provides strong hydrotropic and micelle‑forming behavior.
• Enhances solubility of hydrophobic substrates in organic and mixed solvent systems.
• Supports biphasic catalysis and organic transformations requiring improved mass transfer.

3. Ligand and Intermediate in Coordination Chemistry

• Acts as a neutral N‑donor ligand for transition‑metal complexes.
• Used in designing catalysts, functional materials, and metal–organic precursors with tunable hydrophobicity.

4. Organic Synthesis Intermediate

• Functions as a nucleophilic heterocycle for quaternization, acylation, alkylation, and functional‑group elaboration.
• Supports synthesis of surfactants, ionic surfactant‑like materials, and specialty imidazolium derivatives.

5. Corrosion‑Inhibitor Component

• Long‑chain imidazoles are widely used in corrosion‑inhibiting formulations for steel, copper, and mixed‑metal systems.
• The octyl substituent enhances adsorption on metal surfaces, improving film formation and barrier performance.

6. Additive in Lubricants and Metalworking Fluids

• Contributes to antiwear and anticorrosion properties in lubricant packages.
• Provides surface‑active behavior that improves boundary lubrication and reduces friction.

7. Surfactant and Emulsifier Applications

• Amphiphilic structure supports emulsification, dispersion stabilization, and interfacial modification.
• Useful in specialty coatings, inks, and formulations requiring controlled wetting.

8. Antimicrobial and Antifungal Research

• Long‑chain imidazoles are studied for membrane‑active antimicrobial properties.
• Employed in exploratory formulations for coatings, textiles, and surface‑treatment systems.

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