Description

Butanoic Acid, 2-(Cyclopentylamino)-, Methyl Ester, (2R)- is a chiral, non-racemic organic compound featuring a cyclopentylamino substituent. This specific stereochemistry and functional group combination make it a valuable advanced pharmaceutical intermediate (API intermediate) and a versatile building block in asymmetric synthesis. It is primarily utilized by research institutions and fine chemical manufacturers engaged in the development of novel active pharmaceutical ingredients (APIs), agrochemicals, and specialty materials.

Application

• Pharmaceutical Intermediate: A key chiral synthon in the multi-step synthesis of complex drug molecules, particularly those targeting neurological or metabolic pathways.
• Agrochemical Synthesis: Serves as a precursor for developing novel, stereospecific pesticides and herbicides with enhanced efficacy and environmental profiles.
• Asymmetric Catalysis Research: Used as a substrate or ligand precursor in academic and industrial research to develop new chiral catalysts and methodologies.
• Fine Chemical Production: Employed in the manufacture of specialty chemicals, flavors, and fragrances where precise stereocontrol is required.
• Process Chemistry Development: Utilized for scaling up synthetic routes in pilot plants and optimizing production processes for commercial-scale API manufacturing.

Basic Information

Item	Detail
Product Name	Butanoic Acid, 2-(Cyclopentylamino)-, Methyl Ester, (2R)-
CAS No.	755039-52-2
Molecular Formula	C11H21NO2
Molecular Weight	199.29 g/mol
Synonyms	(2R)-2-(Cyclopentylamino)butanoic acid methyl ester; Methyl (2R)-2-(cyclopentylamino)butanoate; (R)-Methyl 2-(cyclopentylamino)butanoate; (R)-2-(Cyclopentylamino)butyric acid methyl ester; (2R)-2-(Cyclopentylamino)butyric acid methyl ester; (R)-Methyl 2-(cyclopentylamino)butyrate; (2R)-2-(Aminocyclopentyl)butanoic acid methyl ester
EINECS	Contact for details

Quality Control

Our Butanoic Acid, 2-(Cyclopentylamino)-, Methyl Ester, (2R)- is produced under strict quality management systems. Each batch undergoes comprehensive analytical testing, including chiral purity (enantiomeric excess) determination by HPLC, to ensure it meets the stringent requirements for pharmaceutical R&D and production. A Certificate of Analysis (COA) detailing identity, purity, 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 place at controlled room temperature (15-25°C). Keep the container tightly sealed to minimize exposure to moisture and air.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Chiral Purity (Enantiomeric Excess)	≥ 99.0% ee
Water Content (KF)	≤ 0.5%

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