Description

1-Cyclopentene-1,2-Dicarboxylic Acid, 3-Methyl-, (S)-(-)- (8Ci) is a high-purity, chiral cyclopentene derivative that serves as a critical building block in advanced organic synthesis. Its defined stereochemistry and functionalized structure make it an invaluable intermediate for creating complex molecules with specific three-dimensional orientations. This compound is essential for research and development chemists in the pharmaceutical and agrochemical industries, where it is used to synthesize novel active ingredients and fine chemicals.

Application

• Pharmaceutical Intermediate: Key chiral synthon for the development of novel active pharmaceutical ingredients (APIs), particularly in asymmetric synthesis.
• Agrochemical Synthesis: Used in the research and production of advanced pesticides and herbicides requiring specific stereoisomers for optimal activity.
• Fine Chemical Production: Serves as a specialized precursor in the manufacture of complex flavors, fragrances, and performance chemicals.
• Academic & Industrial Research: A valuable reagent for methodological development in organic chemistry, catalysis, and material science research.
• Ligand and Catalyst Development: Utilized in the synthesis of chiral ligands and organocatalysts for enantioselective transformations.

Basic Information

Product Name	1-Cyclopentene-1,2-Dicarboxylic Acid, 3-Methyl-, (S)-(-)- (8Ci)
CAS No.	20512-98-5
Molecular Formula	C9H10O4
Molecular Weight	182.17 g/mol
Synonyms	(S)-(-)-3-Methyl-1-cyclopentene-1,2-dicarboxylic Acid; (1S)-3-Methyl-4-cyclopentene-1,2-dicarboxylic Acid; (-)-3-Methyl-1-cyclopentene-1,2-dicarboxylic Acid; (S)-3-Methyl-1-cyclopentene-1,2-dicarboxylic acid; 3-Methyl-1-cyclopentene-1,2-dicarboxylic acid, (S)-(-)-; 1,2-Cyclopentenedicarboxylic acid, 3-methyl-, (S)-
EINECS	Contact for details

Quality Control

Our production of 1-Cyclopentene-1,2-Dicarboxylic Acid, 3-Methyl-, (S)-(-)- (8Ci) adheres to stringent quality management protocols. Every batch is characterized and tested to ensure identity, purity, and enantiomeric excess meet exacting standards. A comprehensive Certificate of Analysis (COA) detailing specifications such as assay, chiral purity, and impurity profile is provided with each shipment to guarantee consistent quality and traceability for your critical applications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at controlled room temperature (15-25°C). This product is hygroscopic (moisture-sensitive) and must be kept under dry conditions to maintain stability and purity.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Enantiomeric Excess (Chiral HPLC)	≥ 99.0%
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.