Description

4-Cyclohexene-1,2-Dicarboxylic Acid, 4-Methyl-, (1R,2R)-(-)- (8Ci) is a high-purity, chiral organic compound with the CAS number 16665-71-7. This specific stereoisomer is a valuable building block in asymmetric synthesis, offering precise control over the three-dimensional structure of target molecules. It is essential for researchers and manufacturers in the pharmaceutical and fine chemical industries developing advanced intermediates, chiral ligands, and active pharmaceutical ingredients (APIs).

Application

• Chiral Intermediate in Pharmaceutical Synthesis: A key starting material for the production of enantiomerically pure drugs and bioactive molecules.
• Asymmetric Catalyst and Ligand Precursor: Used in the development of novel catalysts for stereoselective chemical reactions.
• Fine Chemical and Specialty Chemical Production: Serves as a critical building block for complex organic compounds in agrochemicals and advanced materials.
• Academic and Industrial Research & Development: A standard reagent for methodological studies in organic chemistry and process development.
• Reference Standard for Analytical Purposes: Employed in chromatography (HPLC, GC) for method development and quality control of related substances.

Basic Information

Product Name	4-Cyclohexene-1,2-Dicarboxylic Acid, 4-Methyl-, (1R,2R)-(-)- (8Ci)
CAS No.	16665-71-7
Molecular Formula	C9H12O4
Molecular Weight	184.19 g/mol
Synonyms	(1R,2R)-4-Methyl-4-cyclohexene-1,2-dicarboxylic acid; (-)-4-Methyl-4-cyclohexene-1,2-dicarboxylic acid; (1R,2R)-(-)-4-Methyl-1,2-cyclohexenedicarboxylic acid; 4-Methyl-δ⁴-tetrahydrophthalic acid, (1R,2R)-(-)- form; (1R,2R)-4-Methyl-1,2,3,6-tetrahydrophthalic acid; 4-Methyl-1-cyclohexene-1,2-dicarboxylic acid, (1R,2R)-(-)-; 4-Methyl-4-cyclohexene-cis-1,2-dicarboxylic acid
EINECS	Contact for details

Quality Control

Our production of 4-Cyclohexene-1,2-Dicarboxylic Acid, 4-Methyl-, (1R,2R)-(-)- (8Ci) adheres to stringent quality management protocols to ensure batch-to-batch consistency and high chemical purity. Each lot is fully characterized and tested using advanced analytical techniques including HPLC, GC, NMR, and chiral analysis. A comprehensive Certificate of Analysis (COA) detailing identity, purity, enantiomeric excess, and impurity profiles is provided with every shipment.

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). Keep away from strong oxidizing agents, strong bases, and heat sources. For long-term storage, consider an inert atmosphere to maintain optimal stability.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Enantiomeric Excess (Chiral HPLC)	≥ 99.0%
Melting Point	Contact for details
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 10 ppm

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