Description

7-Ethyl-4-Oxo-2-Phenyl-4,7-Dihydrothieno[2,3-B]Pyridine-5-Carboxylic Acid is a high-purity, heterocyclic organic compound that serves as a critical advanced intermediate in modern pharmaceutical synthesis. Its unique fused thienopyridine structure makes it a valuable building block for developing novel active pharmaceutical ingredients (APIs) with targeted therapeutic effects. This compound is primarily sought by research institutions and fine chemical manufacturers engaged in the development of new drug candidates, particularly in areas requiring complex molecular architectures.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of novel drug candidates, especially those targeting central nervous system (CNS) disorders or possessing anti-inflammatory properties.
• Organic Synthesis Building Block: Used in research-scale and pilot-scale organic reactions to construct complex heterocyclic frameworks for medicinal chemistry programs.
• Chemical Research & Development: Employed in academic and industrial R&D labs for studying structure-activity relationships (SAR) and developing new synthetic methodologies.
• Active Pharmaceutical Ingredient (API) Synthesis: Serves as a core scaffold in multi-step syntheses for potential APIs, requiring high purity and consistent quality.
• Reference Standard: Can be supplied as a certified reference material for analytical method development and quality control in pharmaceutical manufacturing.

Basic Information

Product Name	7-Ethyl-4-Oxo-2-Phenyl-4,7-Dihydrothieno[2,3-B]Pyridine-5-Carboxylic Acid
CAS No.	66441-42-7
Molecular Formula	C₁₇H₁₅NO₃S
Molecular Weight	313.37 g/mol
Synonyms	7-Ethyl-2-phenyl-4,7-dihydro-4-oxothieno[2,3-b]pyridine-5-carboxylic acid; Thieno[2,3-b]pyridine-5-carboxylic acid, 4,7-dihydro-7-ethyl-4-oxo-2-phenyl-; 2-Phenyl-7-ethyl-4,7-dihydro-4-oxothieno[2,3-b]pyridine-5-carboxylic Acid; 66441-42-7; 7-Ethyl-4-oxo-2-phenyl-4H-thieno[2,3-b]pyridine-5-carboxylic acid
EINECS	Contact for details

Quality Control

Our 7-Ethyl-4-Oxo-2-Phenyl-4,7-Dihydrothieno[2,3-B]Pyridine-5-Carboxylic Acid is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation via spectroscopic methods, to ensure it meets the stringent requirements for pharmaceutical R&D. Certificates of Analysis (COA) detailing all specifications and test results are provided with every shipment.

Storage

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

Specification

Item	Specification
Appearance	Off-white to light yellow crystalline powder
Identification (IR)	Conforms to structure
Identification (HPLC)	Retention time matches reference standard
Purity (HPLC)	≥ 98.0%
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 20 ppm

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