Description

Cyclopentanecarboxylic Acid, 3-Formyl-, Methyl Ester, trans- (9Ci) is a high-purity, specialized organic building block characterized by its functionalized cyclopentane ring. This compound matters as a critical chiral intermediate for the synthesis of complex molecules, offering precise stereochemical control. It is needed by research and development chemists in the pharmaceutical and agrochemical industries for creating novel active ingredients and advanced materials.

Application

• Pharmaceutical Intermediate: Key chiral synthon for the development of novel active pharmaceutical ingredients (APIs), particularly in antiviral, anti-inflammatory, and central nervous system (CNS) drug candidates.
• Agrochemical Synthesis: Used in the research and production of advanced pesticides and herbicides, where its stereochemistry can influence biological activity.
• Fine Chemical Production: Serves as a versatile building block in custom synthesis and contract manufacturing for specialty chemicals.
• Academic & Industrial Research: A valuable reagent for methodological development in organic synthesis, asymmetric catalysis, and material science.
• Fragrance & Flavor Chemistry: Potential intermediate for creating complex, stereodefined odorants and flavor compounds.

Basic Information

Product Name	Cyclopentanecarboxylic Acid, 3-Formyl-, Methyl Ester, trans- (9Ci)
CAS No.	139585-46-9
Molecular Formula	C8H12O3
Molecular Weight	156.18 g/mol
Synonyms	trans-3-Formylcyclopentanecarboxylic Acid Methyl Ester; Methyl trans-3-Formylcyclopentanecarboxylate; (1R,3S)-3-Formylcyclopentanecarboxylic Acid Methyl Ester; (1S,3R)-3-Formylcyclopentanecarboxylic Acid Methyl Ester; trans-Methyl 3-formylcyclopentanecarboxylate; Cyclopentanecarboxylic acid, 3-formyl-, methyl ester, trans-; 139585-46-9
EINECS	Contact for details

Quality Control

Our Cyclopentanecarboxylic Acid, 3-Formyl-, Methyl Ester, trans- (9Ci) is produced under strict quality management systems. Each batch undergoes rigorous analytical testing, including chiral purity analysis by HPLC, to ensure it meets the high standards required for advanced synthetic applications. Certificates of Analysis (COA) with detailed chromatographic data are provided for every shipment to guarantee traceability and consistency.

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 bases and incompatible materials such as strong oxidizing agents. For long-term storage, consider storing under an inert atmosphere to maintain optimal purity.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Chiral Purity (Chiral HPLC)	≥ 98.0% de
Water Content (KF)	≤ 0.5%

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