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Specifications
|
Appearance |
Off-white powder |
|
Assay (HPLC) |
98% min |
|
Loss on Drying |
0.5% max |
|
Dissolving Test (DMF) |
Clarification solution |
Introduction
1,3-Cyclohexanedicarboxylic acid丨CAS 3971-31-1 is a saturated alicyclic dicarboxylic acid, structurally composed of a cyclohexane ring substituted with carboxylic acid groups at the 1 and 3 positions. It exists in cis and trans isomeric forms, each offering distinct reactivity and utility in polymer chemistry, material science, and pharmaceuticals. Its rigid cyclic structure and bifunctional acidic groups make it valuable as a monomer and building block in organic synthesis.
Applications
1. Polymer Industry
● Used as a diacid monomer in the synthesis of polyesters, polyamides, and polyurethanes.
● The cycloaliphatic structure imparts rigidity, thermal stability, and UV resistance to polymers, making them suitable for engineering plastics, automotive materials, and coatings.
● Polymers made from 1,3-cyclohexanedicarboxylic acid often have improved mechanical strength and chemical resistance.
2. Pharmaceutical Intermediates
● Acts as a starting material or linker in the synthesis of bioactive molecules.
● Due to its cyclic and bifunctional nature, it is used to create rigid frameworks in drug candidates.
● Potential use in prodrug design, controlled drug release systems, and conjugation to active pharmaceutical ingredients (APIs).
3. Coatings and Adhesives
● Incorporated in high-performance coatings, especially where durability and resistance to weathering are critical.
● Used in adhesives requiring flexibility and water resistance.
4. Synthesis of Functional Materials
● Used to synthesize metal-organic frameworks (MOFs) and coordination polymers, especially in its cis form which allows favorable ligand orientation.
● Acts as a chelating agent or ligand in coordination chemistry.
Benefits
1. Structural Rigidity and Versatility
● The cyclohexane ring provides rigidity and dimensional stability, important for performance materials.
● The 1,3-dicarboxylic configuration allows for controlled reactivity in polycondensation and cross-linking reactions.
2. Isomeric Flexibility (cis/trans)
● Availability of both cis and trans isomers allows for fine-tuning polymer properties like crystallinity, flexibility, and melting behavior.
● The cis isomer is particularly useful in producing amorphous polymers with improved transparency and impact resistance.
3. Eco-Friendly Potential
● Can be incorporated into biodegradable polymers and environmentally safer materials, especially when used with renewable diols or diamines.
● Fits into green chemistry approaches aiming to replace aromatic dicarboxylic acids with non-aromatic cyclic alternatives.
4. Thermal and Chemical Stability
● Materials derived from this compound show high thermal resistance, good weatherability, and low volatility, which is advantageous in high-performance coatings and resins.
Conclusion
1,3-Cyclohexanedicarboxylic acid丨CAS 3971-31-1 is a versatile and robust chemical intermediate with widespread utility in the polymer, coatings, and pharmaceutical industries. Its unique combination of cyclic structure, bifunctionality, and isomeric diversity makes it an ideal choice for applications requiring strength, stability, and flexibility. Whether serving as a monomer in high-performance polymers or as a framework in drug development, this compound plays a valuable role in both industrial and research contexts.
