(1R,3R)-1,3-Cyclohexanedicarboxylic acid is a chiral, alicyclic dicarboxylic acid. It exists as a white crystalline powder and is the trans-isomer of 1,3-cyclohexanedicarboxylic acid. This compound is a key monomer in polymer chemistry, particularly valued for its rigid, non-aromatic cyclohexane ring structure. Its primary industrial application is as a building block for high-performance, bio-based polymers. It is copolymerized with diols (like 1,4-butanediol) to produce partially or fully renewable polyesters, such as poly(1,3-cyclohexanedimethylene 1,3-cyclohexanedicarboxylate) (PCCD). These polymers exhibit excellent thermal stability, clarity, and chemical resistance, making them suitable for engineering plastics, coatings, and packaging materials. The chiral nature of this specific enantiomer can also be leveraged in the synthesis of specialty polymers and as a resolving agent or chiral auxiliary in asymmetric synthesis.