Description

Cyclopentanecarboxylic Acid, 1-Amino-, 1,1-Dimethylethyl Ester (9Ci) is a specialized organic compound featuring a cyclopentane backbone with both amino and tert-butyl ester functional groups. This unique structure makes it a valuable protected amino acid derivative and a versatile chiral building block for advanced chemical synthesis. It is primarily utilized by pharmaceutical research and fine chemical industries for the development of novel active ingredients and complex organic molecules.

Application

• Pharmaceutical Intermediate: Serves as a key chiral synthon in the research and development of new drug candidates, particularly for compounds requiring cyclopentane-based scaffolds.
• Peptide Synthesis: Used as a protected amino acid derivative in the synthesis of modified peptides and peptidomimetics.
• Agrochemical Research: Acts as a building block for creating novel active ingredients in crop protection and pesticide development.
• Material Science: Employed in the synthesis of specialty polymers, liquid crystals, and other advanced materials requiring specific stereochemistry.
• Catalyst & Ligand Development: Utilized in the preparation of chiral ligands and organocatalysts for asymmetric synthesis.
• Academic & Industrial R&D: A critical reagent for methodological studies in organic chemistry and process development.

Basic Information

Product Name	Cyclopentanecarboxylic Acid, 1-Amino-, 1,1-Dimethylethyl Ester (9Ci)
CAS No.	120225-90-3
Molecular Formula	C11H21NO2
Molecular Weight	199.29 g/mol
Synonyms	1-Aminocyclopentanecarboxylic acid tert-butyl ester; tert-Butyl 1-aminocyclopentanecarboxylate; 1-(tert-Butoxycarbonyl)cyclopentylamine; 1-Amino-1-carboxycyclopentane tert-butyl ester; 1-Boc-aminocyclopentanecarboxylic acid tert-butyl ester; (1-Aminocyclopentyl)carboxylic acid tert-butyl ester; 1-N-Boc-cyclopentane-1-carboxylic acid tert-butyl ester
EINECS	Contact for details

Quality Control

Our Cyclopentanecarboxylic Acid, 1-Amino-, 1,1-Dimethylethyl Ester is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC for purity and chiral analysis to ensure stereochemical integrity. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing identity, assay, and impurity profiles to support your quality and regulatory requirements.

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). This compound is hygroscopic (moisture-sensitive); containers must be kept tightly sealed and under an inert atmosphere (e.g., nitrogen) for long-term storage to prevent degradation.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Chiral Purity (Chiral HPLC)	≥ 99.0% ee
Water Content (KF)	≤ 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.