Description

7-Methyl-4-Oxo-4,7-Dihydrothieno[2,3-B]Pyridine-5-Carboxylic Acid is a high-purity heterocyclic carboxylic acid building block of significant interest in advanced organic synthesis. Its fused thienopyridine core structure makes it a valuable intermediate for developing novel active pharmaceutical ingredients (APIs) and functional materials. This compound is primarily sought after by research institutions and manufacturers in the pharmaceutical, agrochemical, and specialty chemical industries for constructing complex molecular architectures.

Application

• Pharmaceutical Intermediate: A key synthon in the research and development of new drug candidates, particularly those targeting central nervous system (CNS) disorders, inflammation, and metabolic diseases.
• Agrochemical Synthesis: Used as a precursor for creating novel herbicides, fungicides, and insecticides with potential new modes of action.
• Material Science Research: Serves as a building block for organic semiconductors, conductive polymers, and other functional materials due to its electron-rich heterocyclic system.
• Chemical Biology Probes: Employed in the design and synthesis of molecular probes for studying enzyme function and biological pathways.
• Custom Synthesis & Contract Manufacturing: A critical starting material for custom synthesis projects requiring complex, multi-step organic transformations.
• Academic & Industrial R&D: Utilized in discovery chemistry for exploring new chemical spaces and developing novel synthetic methodologies.

Basic Information

Product Name	7-Methyl-4-Oxo-4,7-Dihydrothieno[2,3-B]Pyridine-5-Carboxylic Acid
CAS No.	67637-78-9
Molecular Formula	C10H7NO3S
Molecular Weight	221.23 g/mol
Synonyms	7-Methyl-4-oxo-4,7-dihydrothieno[2,3-b]pyridine-5-carboxylic acid; 4,7-Dihydro-7-methyl-4-oxothieno[2,3-b]pyridine-5-carboxylic Acid; Thieno[2,3-b]pyridine-5-carboxylic acid, 4,7-dihydro-7-methyl-4-oxo-; 5-Carboxy-7-methyl-4,7-dihydro-4-oxothieno[2,3-b]pyridine; 7-Methyl-4-oxo-4H-thieno[2,3-b]pyridine-5-carboxylic acid; 67637-78-9 (CAS); Thienopyridine carboxylic acid derivative
EINECS	Contact for details

Quality Control

Our 7-Methyl-4-Oxo-4,7-Dihydrothieno[2,3-B]Pyridine-5-Carboxylic Acid is manufactured under strict quality management systems. We offer material suitable for research and development purposes, with typical purity levels exceeding 95% (HPLC). Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation via spectroscopic methods (NMR, IR). Certificates of Analysis (COA) detailing batch-specific results are available upon request to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). Keep away from heat, sparks, and open flames. For long-term storage, consider storing under an inert atmosphere to maintain optimal stability.

Specification

Item	Specification
Appearance	Off-white to light yellow powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 95.0%
Loss on Drying	≤ 2.0%
Residue on Ignition	≤ 0.5%
Heavy Metals	≤ 20 ppm

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