Description

Thieno[2,3-B]Pyrazine-6-Carboxylic Acid, 7-Amino-, Methyl Ester (9Ci) is a high-purity, advanced pharmaceutical intermediate characterized by its fused heterocyclic structure. This compound matters for its critical role as a key building block in the synthesis of complex active pharmaceutical ingredients (APIs), particularly in therapeutic areas requiring sophisticated molecular scaffolds. Pharmaceutical R&D teams and fine chemical manufacturers need this precise intermediate to develop new drug candidates, leveraging its unique chemical framework to create novel compounds with targeted biological activity.

Application

• Pharmaceutical Intermediate: Serves as a crucial precursor in the multi-step synthesis of novel drug candidates, especially in oncology and antiviral research.
• Organic Synthesis Building Block: Used in medicinal chemistry for constructing complex heterocyclic systems central to modern drug discovery programs.
• Agrochemical Research: Employed in the development of new active ingredients for crop protection products, utilizing its unique molecular architecture.
• Material Science Precursor: Investigated for the synthesis of organic electronic materials and specialty polymers due to its conjugated system.
• Academic & Contract Research: Essential for universities and CROs (Contract Research Organizations) conducting fundamental research on nitrogen and sulfur-containing heterocycles.
• Custom Synthesis Projects: Supplied to fine chemical companies for bespoke manufacturing and process development for client-specific molecules.

Basic Information

Product Name	Thieno[2,3-B]Pyrazine-6-Carboxylic Acid, 7-Amino-, Methyl Ester (9Ci)
CAS No.	244014-85-5
Molecular Formula	C8H7N3O2S
Molecular Weight	209.22 g/mol
Synonyms	7-Aminothieno[2,3-b]pyrazine-6-carboxylic acid methyl ester; Methyl 7-amino-6-thieno[2,3-b]pyrazinecarboxylate; 7-Amino-6-(methoxycarbonyl)thieno[2,3-b]pyrazine; Methyl 7-aminothieno[2,3-b]pyrazine-6-carboxylate; 244014-85-5; Thieno[2,3-b]pyrazine-6-carboxylic acid, 7-amino-, methyl ester; Methyl 7-amino-thieno[2,3-b]pyrazine-6-carboxylate
EINECS	Contact for details

Quality Control

Our Thieno[2,3-B]Pyrazine-6-Carboxylic Acid, 7-Amino-, Methyl Ester (9Ci) is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation via spectroscopic methods, to ensure it meets the high standards required for pharmaceutical R&D and fine chemical synthesis. Certificates of Analysis (COA) detailing batch-specific results are available upon request, providing full traceability and compliance documentation.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (typically 15-25°C). This compound may be light-sensitive and should be handled under appropriate conditions to maintain stability.

Specification

Item	Specification
Appearance	Off-white to light yellow crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Related Substances (HPLC)	Total impurities ≤ 3.0%
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.