Cyclohexanecarboxylic acid, with the chemical formula C₇H₁₂O₂ (or C₆H₁₁CO₂H), is an important organic compound widely used in various industrial applications. This carboxylic acid derivative of cyclohexane serves as a versatile intermediate in chemical synthesis and manufacturing processes.

Chemical Properties

Cyclohexanecarboxylic acid appears as a colorless oil that can crystallize near room temperature. It is derived through the hydrogenation of benzoic acid and exhibits the following key properties:

• Molecular Weight: 128.17 g/mol
• CAS Number: 98-89-5
• Melting Point: Near room temperature
• Water Solubility: Approximately 0.2% w/w at 15°C (0.201g per 100g water)
• Solubility: Soluble in organic solvents

Industrial Applications

This compound finds extensive applications across multiple industries:

1. Pharmaceutical Industry

Cyclohexanecarboxylic acid serves as a starting reagent for the synthesis of polyketide-type antibiotics, particularly Phoslactomycins. Its cyclic structure makes it valuable in pharmaceutical intermediate synthesis.

2. Polymer Industry

It is a critical precursor to nylon-6, one of the most widely used synthetic polymers globally. This application drives significant demand in the textile and manufacturing industries.

3. Coatings and Finishes

In the coatings industry, cyclohexanecarboxylic acid is used as:

• Paint and varnish driers
• Dry-cleaning soaps
• Lubricating oil additives

4. Rubber Industry

The compound functions as a stabilizer for rubber, helping to enhance the durability and performance of rubber products.

5. Flavor and Fragrance Industry

Cyclohexanecarboxylic acid is recognized as a flavor and fragrance agent, contributing fruity notes to various formulations.

6. Research Applications

In laboratory settings, it is used to determine complex binding constants of cyclodextrins with cyclohexane derivatives, making it valuable in supramolecular chemistry research.

Safety and Handling

When handling cyclohexanecarboxylic acid, standard safety precautions should be observed:

• Use appropriate personal protective equipment (PPE)
• Store in a cool, dry place away from incompatible materials
• Follow local regulations for disposal

Conclusion

Cyclohexanecarboxylic acid (CAS 98-89-5) is a multifunctional chemical intermediate with applications spanning pharmaceuticals, polymers, coatings, rubber stabilization, and flavor industries. Its versatility and unique chemical properties make it a valuable compound in chemical manufacturing.

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