Description

Thieno[2,3-B]Pyrazine-6-Carboxylic Acid, 7-Ethoxy- is a high-purity, specialized heterocyclic building block of significant interest in advanced organic synthesis. This compound matters for its role as a key precursor in the development of novel active pharmaceutical ingredients (APIs) and functional materials. It is primarily needed by research institutions and manufacturers in the pharmaceutical, agrochemical, and material science industries for constructing complex molecular architectures. Our supply is characterized by stringent quality control to ensure batch-to-batch consistency for critical R&D and scale-up processes.

Application

• Pharmaceutical Intermediate: A crucial building block for the synthesis of novel drug candidates, particularly in kinase inhibitor and antiviral research.
• Agrochemical Research: Used in the development of new herbicides and fungicides with novel modes of action.
• Organic Light-Emitting Diodes (OLEDs): Serves as a precursor for electron-transport or emissive layer materials in electronic displays.
• Coordination Chemistry & Ligand Synthesis: The carboxylic acid functionality allows for the creation of complex ligands for catalysis or metal-organic frameworks (MOFs).
• Dye & Pigment Intermediate: Used in the synthesis of specialized heterocyclic dyes with specific optical properties.
• Academic & Contract Research: A valuable reagent for methodological studies and the exploration of new heterocyclic chemistry.

Basic Information

Item	Detail
Product Name	Thieno[2,3-B]Pyrazine-6-Carboxylic Acid, 7-Ethoxy-
CAS No.	521948-77-6
Molecular Formula	C9H8N2O3S
Molecular Weight	224.23 g/mol
Synonyms	7-Ethoxythieno[2,3-b]pyrazine-6-carboxylic acid; 7-Ethoxy-thieno[2,3-b]pyrazine-6-carboxylic acid; 521948-77-6; Thieno[2,3-b]pyrazine-6-carboxylic acid, 7-ethoxy-; 6-Carboxy-7-ethoxythieno[2,3-b]pyrazine
EINECS	Contact for details

Quality Control

Our production of Thieno[2,3-B]Pyrazine-6-Carboxylic Acid, 7-Ethoxy- adheres to a rigorous quality management system. Every batch is analyzed using advanced techniques like HPLC, NMR, and mass spectrometry to confirm identity, purity, and the absence of critical impurities. Certificates of Analysis (COA) detailing all test results are provided and can be tailored to meet specific client or regulatory requirements.

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). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept sealed under dry conditions to prevent degradation. Keep away from incompatible materials such as strong bases and oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white 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%

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