Description

Ethyl 3-Amino-6,7-Dihydro-5H-Cyclopenta[B]Thieno[3,2-E]Pyridine-2-Carboxylate is a high-purity, advanced pharmaceutical intermediate with a complex fused-ring heterocyclic structure. This compound is valued for its role as a critical building block in the synthesis of novel active pharmaceutical ingredients (APIs), particularly in therapeutic areas requiring sophisticated molecular scaffolds. It is primarily sought by R&D chemists and process development scientists in the pharmaceutical, biotechnology, and fine chemical industries for drug discovery and development programs.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of proprietary drug candidates, particularly those targeting central nervous system (CNS) disorders, oncology, and inflammatory diseases.
• Drug Discovery & Medicinal Chemistry: Serves as a versatile scaffold for constructing compound libraries and exploring structure-activity relationships (SAR) in early-stage research.
• Process Chemistry & API Development: Used in the scale-up and optimization of synthetic routes for potential new chemical entities (NCEs).
• Academic & Contract Research: Employed in university and CRO (Contract Research Organization) settings for investigative chemistry and the development of novel synthetic methodologies.
• Fine Chemical Synthesis: Utilized in the multi-step production of other specialized, high-value heterocyclic compounds.

Basic Information

Product Name	Ethyl 3-Amino-6,7-Dihydro-5H-Cyclopenta[B]Thieno[3,2-E]Pyridine-2-Carboxylate
CAS No.	166113-89-9
Molecular Formula	C13H14N2O2S
Molecular Weight	262.33 g/mol
Synonyms	Ethyl 3-Amino-5H-cyclopenta[b]thieno[3,2-e]pyridine-2-carboxylate; 3-Amino-6,7-dihydro-5H-cyclopenta[b]thieno[3,2-e]pyridine-2-carboxylic Acid Ethyl Ester; 2-Carbethoxy-3-amino-6,7-dihydro-5H-cyclopenta[b]thieno[3,2-e]pyridine; 166113-89-9; Cyclopentathienopyridine derivative; Fused thienopyridine ester
EINECS	Contact for details

Quality Control

Our Ethyl 3-Amino-6,7-Dihydro-5H-Cyclopenta[B]Thieno[3,2-E]Pyridine-2-Carboxylate is manufactured under a strict quality management system. Every batch undergoes comprehensive analytical testing, including HPLC, NMR, and MS, to ensure identity, purity, and consistency. A detailed Certificate of Analysis (COA) is provided with each shipment, documenting all critical specifications. We support cGMP compliance for pharmaceutical applications, and our quality protocols are designed to meet the stringent requirements of global regulatory standards.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (15-25°C). This product is hygroscopic (moisture-sensitive) and should be handled in a dry environment to prevent degradation. Keep away from incompatible materials.

Specification

Item	Specification
Appearance	Off-white to light yellow crystalline powder
Identification (HPLC)	Conforms to reference standard
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Water Content (KF)	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 10 ppm
Single Unknown Impurity (HPLC)	≤ 0.5%
Total Impurities (HPLC)	≤ 2.0%

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