(1R,2S,4S,5R)-cyclohexane-1,2,4,5-tetracarboxylic dianhydride, CAS 1198787-91-5, used in advanced polymers - Jalandhar

(1R,2S,4S,5R)-Cyclohexane-1,2,4,5-tetracarboxylic dianhydride is a stereochemically defined cyclic dianhydride featuring a rigid cyclohexane backbone and two highly reactive anhydride functionalities. Its unique three-dimensional structure and fixed stereochemistry make it a valuable intermediate for the synthesis of high-performance polymers, advanced materials, and specialty chemicals.

This compound is characterized by its high reactivity toward nucleophiles such as amines and alcohols, enabling efficient formation of imides, esters, and polycondensation products. The presence of a saturated cyclohexane core contributes enhanced thermal stability, mechanical strength, and chemical resistance to downstream materials, distinguishing it from aromatic dianhydrides.

Applications in Polymer and Materials Science
One of the primary applications of (1R,2S,4S,5R)-cyclohexane-1,2,4,5-tetracarboxylic dianhydride is in the synthesis of high-performance polyimides and polyesters. Polymers derived from this dianhydride exhibit excellent heat resistance, dimensional stability, and low dielectric constants, making them suitable for use in electronics, coatings, and advanced composite materials.

Its defined stereochemistry allows precise control over polymer architecture, which is critical for tailoring mechanical properties, flexibility, and transparency. As a result, this compound is increasingly used in research and development of next-generation functional materials.

Role in Specialty Chemicals and Fine Synthesis
Beyond polymer chemistry, this dianhydride serves as an important building block in fine chemical synthesis. The reactive anhydride groups enable selective functionalization, making it suitable for producing chiral intermediates, crosslinking agents, and specialty additives. Its rigid alicyclic structure also makes it valuable in applications requiring low color formation and improved oxidative stability.

Research and Development Applications
In academic and industrial research, (1R,2S,4S,5R)-cyclohexane-1,2,4,5-tetracarboxylic dianhydride is used to study structure–property relationships in polymers and materials. It is particularly useful in exploring how stereochemistry and backbone rigidity influence thermal, mechanical, and dielectric performance.

Conclusion
(1R,2S,4S,5R)-Cyclohexane-1,2,4,5-tetracarboxylic dianhydride (CAS 1198787-91-5) is a high-value dianhydride intermediate with broad applications in polymer science, advanced materials, and specialty chemical synthesis. Its unique stereochemical structure, strong reactivity, and ability to impart superior material properties make it an important component in modern materials innovation.