Description

Thieno[2,3-B]Quinoxaline-2-Carboxylic Acid is a high-purity, heterocyclic carboxylic acid building block of significant importance in advanced organic synthesis. This compound matters as a critical precursor for developing novel pharmaceuticals, agrochemicals, and functional materials due to its fused thienoquinoxaline core. It is primarily needed by R&D chemists and process development scientists in the pharmaceutical, agrochemical, and specialty chemical industries for creating compounds with potential biological activity.

Application

• Pharmaceutical Intermediate: Serves as a key synthon for the development of novel drug candidates, particularly in oncology and CNS research.
• Agrochemical Synthesis: Used in the research and production of advanced pesticides and herbicides, leveraging its heterocyclic structure.
• Material Science Research: Acts as a building block for organic semiconductors, dyes, and photoactive materials.
• Academic & Industrial R&D: A valuable reagent for methodological studies and the synthesis of complex heterocyclic libraries.
• Ligand and Catalyst Development: The carboxylic acid functionality allows for derivatization into chelating agents or catalyst precursors.

Basic Information

Product Name	Thieno[2,3-B]Quinoxaline-2-Carboxylic Acid
CAS No.	107323-83-1
Molecular Formula	C11H6N2O2S
Molecular Weight	230.24 g/mol
Synonyms	2-Thieno[2,3-b]quinoxalinecarboxylic acid; Thieno[2,3-b]quinoxaline-2-carboxylic acid; TQCA; 2-Quinoxalinecarboxylic acid, 4,5-dihydrothieno[2,3-b]-; 107323-83-1; Thienoquinoxaline-2-carboxylic acid; 2-Carboxythieno[2,3-b]quinoxaline
EINECS	Contact for details

Quality Control

Our Thieno[2,3-B]Quinoxaline-2-Carboxylic Acid is manufactured under strict quality management systems. Every batch undergoes rigorous analytical testing, including HPLC for purity and NMR/IR for structural confirmation, to ensure it meets the high standards required for research and development. Certificates of Analysis (COA) with detailed batch-specific data 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 place at a controlled room temperature (15-25°C). Due to its hygroscopic nature, the container must be kept tightly sealed after opening to minimize exposure to atmospheric moisture.

Specification

Item	Specification
Appearance	Yellow to light brown powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Loss on Drying	≤ 1.0%
Residue on Ignition	≤ 0.5%

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