Description

3A,4,5,9B-Tetrahydro-3H-Cyclopenta[C]Quinoline-4,8-Dicarboxylic Acid 4-Ethyl Ester is a high-purity, advanced pharmaceutical intermediate characterized by its complex polycyclic structure. This compound is critical for research and development in medicinal chemistry, serving as a versatile building block for synthesizing novel active pharmaceutical ingredients (APIs). It is primarily utilized by pharmaceutical R&D laboratories and fine chemical manufacturers focused on developing new therapeutic agents.

Application

• Pharmaceutical Intermediate: A key synthetic precursor in the development of novel drug candidates, particularly for central nervous system (CNS) and anti-inflammatory targets.
• Medicinal Chemistry Research: Used as a scaffold for structure-activity relationship (SAR) studies and lead optimization in drug discovery programs.
• Organic Synthesis Building Block: Employed in complex multi-step organic syntheses due to its reactive ester and carboxylic acid functional groups.
• Fine Chemical Production: Serves as a starting material for the manufacture of specialized, high-value chemicals used in advanced applications.
• Academic & Industrial R&D: Utilized in research institutions and corporate R&D centers for exploring new chemical entities and reaction methodologies.

Basic Information

Product Name	3A,4,5,9B-Tetrahydro-3H-Cyclopenta[C]Quinoline-4,8-Dicarboxylic Acid 4-Ethyl Ester
CAS No.	935279-95-1
Molecular Formula	C17H17NO4
Molecular Weight	299.32 g/mol
Synonyms	4,8-Dicarboxy-3a,4,5,9b-tetrahydro-3H-cyclopenta[c]quinoline 4-ethyl ester; 3a,4,5,9b-Tetrahydro-3H-cyclopenta[c]quinoline-4,8-dicarboxylic acid, 4-ethyl ester; 4-Ethyl 3a,4,5,9b-tetrahydro-3H-cyclopenta[c]quinoline-4,8-dicarboxylate; Cyclopenta[c]quinoline-4,8-dicarboxylic acid derivative; CPQ-4,8-dicarboxylic acid 4-ethyl ester
EINECS	Contact for details

Quality Control

Our 3A,4,5,9B-Tetrahydro-3H-Cyclopenta[C]Quinoline-4,8-Dicarboxylic Acid 4-Ethyl Ester is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation via spectroscopic methods (NMR, IR, MS). We provide a detailed Certificate of Analysis (COA) with every shipment, ensuring traceability and compliance with your research or production specifications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (typically 15-25°C). Keep away from incompatible materials such as strong oxidizing agents. For long-term storage, consider storing under an inert atmosphere to maintain stability.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms to structure
Identification (HPLC)	Conforms to reference
Purity (HPLC)	≥ 97.0%
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.