Description

7-Ethyl-4-Oxo-3-Phenyl-4,7-Dihydrothieno[2,3-B]Pyridine-5-Carboxylic Acid 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 research institutions and manufacturers in the pharmaceutical and biotechnology sectors for drug discovery and development programs.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of novel drug candidates, especially those targeting complex biological pathways.
• Organic Synthesis Building Block: Used in research-scale and process chemistry for constructing complex heterocyclic systems with potential biological activity.
• Medicinal Chemistry Research: Serves as a core scaffold for structure-activity relationship (SAR) studies in the development of new therapeutic agents.
• Chemical Reference Standard: Employed as an analytical standard for quality control and method development in pharmaceutical analysis.
• Biochemical Research: Potential use in probing enzyme interactions or as a ligand in biochemical assays due to its distinctive structure.

Basic Information

Product Name	7-Ethyl-4-Oxo-3-Phenyl-4,7-Dihydrothieno[2,3-B]Pyridine-5-Carboxylic Acid
CAS No.	66441-43-8
Molecular Formula	C₁₇H₁₅NO₃S
Molecular Weight	313.37 g/mol
Synonyms	7-Ethyl-4-oxo-3-phenyl-4,7-dihydrothieno[2,3-b]pyridine-5-carboxylic acid; Thieno[2,3-b]pyridine-5-carboxylic acid, 4,7-dihydro-7-ethyl-4-oxo-3-phenyl-; 3-Phenyl-7-ethyl-4,7-dihydro-4-oxothieno[2,3-b]pyridine-5-carboxylic acid; 66441-43-8; 7-Ethyl-3-phenyl-4,7-dihydro-4-oxothieno[2,3-b]pyridine-5-carboxylic acid
EINECS	Contact for details

Quality Control

Our production of 7-Ethyl-4-Oxo-3-Phenyl-4,7-Dihydrothieno[2,3-B]Pyridine-5-Carboxylic Acid adheres to stringent quality management protocols. Every batch is characterized and tested using advanced analytical techniques including HPLC, NMR, and mass spectrometry to ensure identity, purity, and consistency. A comprehensive Certificate of Analysis (COA) detailing all specifications is provided with each shipment to support your quality assurance and regulatory needs.

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. For long-term storage, consider conditions under an inert atmosphere to maintain optimal stability.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms to structure
Identification (HPLC)	Conforms to reference
Purity (HPLC)	≥ 98.0%
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.