Description

7-(1-Methylethyl)-4-Oxo-2-Methyl-4,7-Dihydrothieno[2,3-B]Pyridine-5-Carboxylic Acid is a high-purity, complex heterocyclic carboxylic acid building block with significant value in advanced organic synthesis. This compound matters because it serves as a critical intermediate for the development of novel active pharmaceutical ingredients (APIs) and specialty agrochemicals, where its unique fused thienopyridine core enables the creation of molecules with targeted biological activity. It is primarily needed by research and development chemists, process development scientists, and manufacturers in the pharmaceutical, agrochemical, and fine chemical industries seeking to innovate new therapeutic and crop protection agents.

Application

• Pharmaceutical Intermediate: A key synthetic precursor in the research and production of novel drug candidates, particularly those targeting central nervous system (CNS) disorders, anti-inflammatory agents, and antiviral medications.
• Agrochemical Synthesis: Used in the development of next-generation herbicides, fungicides, and insecticides, leveraging its heterocyclic structure for enhanced bioactivity and selectivity.
• Organic Light-Emitting Diode (OLED) Materials: Serves as a building block for electron-transport or host materials in OLED displays and lighting due to its rigid, conjugated structure.
• Coordination Chemistry & Ligand Synthesis: The carboxylic acid and heterocyclic nitrogen atoms make it a useful precursor for designing novel chelating ligands in catalysis and material science.
• Academic & Industrial R&D: Employed in medicinal chemistry programs and process chemistry for structure-activity relationship (SAR) studies and route scouting.
• Fine Chemical Production: Utilized in the custom synthesis of complex, high-value specialty chemicals for various technological applications.

Basic Information

Product Name	7-(1-Methylethyl)-4-Oxo-2-Methyl-4,7-Dihydrothieno[2,3-B]Pyridine-5-Carboxylic Acid
CAS No.	67637-71-2
Molecular Formula	C13H13NO3S
Molecular Weight	263.31 g/mol
Synonyms	4,7-Dihydro-7-isopropyl-2-methyl-4-oxothieno[2,3-b]pyridine-5-carboxylic acid; 7-Isopropyl-2-methyl-4-oxo-4,7-dihydrothieno[2,3-b]pyridine-5-carboxylic acid; Thieno[2,3-b]pyridine-5-carboxylic acid, 4,7-dihydro-7-(1-methylethyl)-2-methyl-4-oxo-; 7-Isopropyl-2-methyl-4-oxo-4H-thieno[2,3-b]pyridine-5-carboxylic acid
EINECS	Contact for details

Quality Control

Our production of 7-(1-Methylethyl)-4-Oxo-2-Methyl-4,7-Dihydrothieno[2,3-B]Pyridine-5-Carboxylic Acid adheres to stringent quality management protocols. Every batch undergoes comprehensive analytical testing, including HPLC for purity, NMR and IR for structural confirmation, and residual solvent analysis by GC, to ensure consistent identity, purity, and performance. We provide detailed Certificates of Analysis (COA) with each shipment, and our quality systems support compliance with cGMP and ISO standards for pharmaceutical intermediates.

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). Keep the container tightly sealed in a dry environment to minimize exposure to moisture. Due to its chemical nature, store away from strong acids and incompatible materials.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Identification (HPLC)	Retention time matches reference standard
Purity (HPLC)	≥ 98.0%
Water Content (KF)	≤ 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.