Description

Cyclopentanecarboxylic Acid, 3-Methyl-, Methyl Ester, (1R-Trans)- (9Ci) is a high-purity chiral intermediate of significant importance in advanced organic synthesis. Its defined stereochemistry and functional group make it a valuable building block for creating complex, optically active molecules. This compound is primarily needed by research and development laboratories and production facilities in the pharmaceutical and agrochemical sectors, where precise molecular architecture is critical for developing new active ingredients.

Application

• Pharmaceutical Intermediate: A key chiral synthon for the synthesis of novel active pharmaceutical ingredients (APIs), particularly in the development of prostaglandins, antiviral agents, and other therapeutic compounds.
• Agrochemical Synthesis: Used in the research and production of advanced pesticides and herbicides where specific stereochemistry influences biological activity.
• Asymmetric Catalysis Research: Serves as a standard or precursor in methodological studies for developing new chiral catalysts and asymmetric synthesis routes.
• Fragrance and Flavor Chemistry: Potential use as an intermediate for creating specific stereoisomers of musk or other complex aroma chemicals.
• Material Science Research: Acts as a monomer or building block in the development of specialized polymers with unique optical or structural properties.

Basic Information

Product Name	Cyclopentanecarboxylic Acid, 3-Methyl-, Methyl Ester, (1R-Trans)- (9Ci)
CAS No.	152518-86-0
Molecular Formula	C8H14O2
Molecular Weight	142.20 g/mol
Synonyms	(1R,3R)-3-Methylcyclopentanecarboxylic acid methyl ester; Methyl (1R,3R)-3-methylcyclopentanecarboxylate; trans-Methyl 3-methylcyclopentanecarboxylate; (1R-trans)-3-Methylcyclopentanecarboxylic Acid Methyl Ester; (1R,3R)-3-Methylcyclopentane-1-carboxylic acid methyl ester; Methyl trans-3-methylcyclopentanecarboxylate
EINECS	Contact for details

Quality Control

Our Cyclopentanecarboxylic Acid, 3-Methyl-, Methyl Ester, (1R-Trans)- (9Ci) is produced under strict quality management protocols. Each batch undergoes comprehensive analytical testing, including chiral purity analysis by GC or HPLC, to ensure high enantiomeric excess (ee) and chemical purity suitable for sensitive synthetic applications. A detailed Certificate of Analysis (COA) providing identity, assay, chiral purity, and impurity profile is provided with every shipment to guarantee traceability and batch-to-batch consistency.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at controlled room temperature (15-25°C). Keep away from heat, sparks, and open flame. For long-term storage, consider storing under an inert atmosphere to maintain optimal purity.

Specification

Item	Specification
Appearance	Colorless to pale yellow clear liquid
Identification (IR)	Conforms to structure
Assay (GC/HPLC)	≥ 97.0%
Chiral Purity (Enantiomeric Excess)	≥ 98.0% ee
Specific Rotation [α]	Contact for details
Water Content (KF)	≤ 0.5%

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