Description

Cyclopentaneacetic Acid, -α--(Acetylamino)-, Methyl Ester (9Ci) is a specialized chiral building block and advanced pharmaceutical intermediate. This compound matters for its role in the synthesis of complex, biologically active molecules, offering a defined stereocenter for precise chemical construction. It is primarily needed by research institutions and manufacturers in the pharmaceutical and agrochemical industries for developing new active ingredients and fine chemicals.

Application

• Pharmaceutical Intermediate: A key chiral synthon in the research and development of novel therapeutic agents, particularly for central nervous system (CNS) or metabolic disorder targets.
• Agrochemical Synthesis: Used in the production of advanced, enantiomerically pure pesticides and herbicides.
• Organic Synthesis Research: Serves as a versatile building block for constructing complex natural product analogs and other fine chemicals in academic and industrial R&D labs.
• Process Chemistry: Employed in route scouting and scale-up for the manufacture of active pharmaceutical ingredients (APIs) requiring this specific molecular framework.

Basic Information

Product Name	Cyclopentaneacetic Acid, -α--(Acetylamino)-, Methyl Ester (9Ci)
CAS No.	735288-61-6
Molecular Formula	C10H17NO3
Molecular Weight	199.25 g/mol
Synonyms	Methyl 2-(Acetylamino)cyclopentaneacetate; 2-(Acetylamino)cyclopentaneacetic Acid Methyl Ester; α-(Acetylamino)cyclopentaneacetic Acid Methyl Ester; (1R,2S)- or (1S,2R)-Methyl 2-acetamidocyclopentaneacetate (enantiomers); Cyclopentaneacetic acid, α-(acetylamino)-, methyl ester; A chiral cyclopentane derivative ester.
EINECS	Contact for details

Quality Control

Our Cyclopentaneacetic Acid, -α--(Acetylamino)-, Methyl Ester (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 pharmaceutical R&D. Certificates of Analysis (COA) with detailed chromatographic data are provided for full traceability and compliance.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (typically 15-25°C). Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white solid
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Chiral Purity (Chiral HPLC)	≥ 98.0% e.e. (enantiomeric excess)
Water Content (KF)	≤ 0.5%
Residue on Ignition	≤ 0.1%

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