Description

4-Cyclohexene-1,2-Dicarboxylic Acid, 4-Methyl-, trans- (9Ci) is a specialized, high-purity organic acid derivative with a defined stereochemistry, serving as a critical building block in advanced chemical synthesis. Its value lies in its unique cyclohexene backbone and dicarboxylic acid functionality, which enable precise molecular construction for performance-driven applications. This compound is essential for research and development chemists, process engineers, and manufacturers in the pharmaceutical, agrochemical, and advanced materials sectors seeking reliable, high-quality intermediates.

Application

• Pharmaceutical Intermediate: A key chiral synthon for the development of novel active pharmaceutical ingredients (APIs), particularly in stereospecific synthesis.
• Agrochemical Synthesis: Used in the production of advanced herbicides, fungicides, and plant growth regulators requiring specific stereochemistry.
• Polymer & Resin Modifier: Acts as a monomer or cross-linking agent to introduce rigidity and specific functional groups into specialty polymers, coatings, and epoxy resins.
• Fine Chemical & Catalyst Ligand Precursor: Serves as a starting material for synthesizing complex ligands used in asymmetric catalysis and other fine chemical processes.
• Academic & Industrial R&D: A valuable compound for methodological research in organic chemistry, including studies on Diels-Alder reactions and diacid chemistry.
• Electronic Chemicals: Potential use in the synthesis of monomers for polyimides and other high-performance polymers used in electronics.

Basic Information

Product Name	4-Cyclohexene-1,2-Dicarboxylic Acid, 4-Methyl-, trans- (9Ci)
CAS No.	40469-13-4
Molecular Formula	C9H12O4
Molecular Weight	184.19 g/mol
Synonyms	trans-4-Methyl-4-cyclohexene-1,2-dicarboxylic acid; 4-Methyl-4-cyclohexene-1,2-dicarboxylic acid, trans-; 1,2-Cyclohexenedicarboxylic acid, 4-methyl-, (1R,2R)-rel-; 4-Methyl-δ⁴-tetrahydrophthalic acid; NSC 163080; (1R,2R)-rel-4-Methyl-1,2-cyclohexenedicarboxylic acid; 4-Methyl-1,2-cyclohexenedicarboxylic acid (trans isomer)
EINECS	Contact for details

Quality Control

Every batch of 4-Cyclohexene-1,2-Dicarboxylic Acid, 4-Methyl-, trans- (9Ci) is produced under a strict quality management system. We employ advanced analytical techniques including HPLC, GC, and NMR to ensure identity, purity, and stereochemical integrity meet the stringent requirements of our global B2B clients. A comprehensive Certificate of Analysis (COA) detailing purity, assay, and impurity profiles is provided with each shipment to guarantee traceability and compliance with your specifications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept sealed under dry conditions to prevent product degradation or clumping.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Purity (GC)	≥ 97.0%
Melting Point	Contact for details
Loss on Drying	≤ 1.0%
Heavy Metals	≤ 20 ppm
Residue on Ignition	≤ 0.1%

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.