Description

Thieno[2,3-B]Pyrazine-7-Carboxylic Acid, 6-Amino-, Methyl Ester (9Ci) is a high-purity, heterocyclic organic compound that serves as a critical advanced intermediate in modern synthetic chemistry. Its unique fused-ring structure containing both thiophene and pyrazine moieties makes it a valuable building block for the development of novel active pharmaceutical ingredients (APIs) and functional materials. This compound is primarily utilized by research institutions and industrial manufacturers in the pharmaceutical, agrochemical, and specialty chemical sectors for creating complex molecular architectures.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of novel drug candidates, particularly in the development of kinase inhibitors and other small-molecule therapeutics.
• Agrochemical Research: Used as a building block for creating new active ingredients in crop protection products, such as herbicides and fungicides.
• Material Science: Serves as a monomer or functional unit in the development of organic semiconductors, conductive polymers, and other electronic materials.
• Chemical Synthesis: Employed in academic and industrial R&D for constructing complex heterocyclic frameworks in medicinal and combinatorial chemistry.
• Dye & Pigment Industry: Acts as an intermediate for synthesizing specialized dyes and pigments with specific light-absorption properties.

Basic Information

Product Name	Thieno[2,3-B]Pyrazine-7-Carboxylic Acid, 6-Amino-, Methyl Ester (9Ci)
CAS No.	243463-05-0
Molecular Formula	C8H7N3O2S
Molecular Weight	209.23 g/mol
Synonyms	6-Aminothieno[2,3-b]pyrazine-7-carboxylic acid methyl ester; Methyl 6-aminothieno[2,3-b]pyrazine-7-carboxylate; 6-Amino-thieno[2,3-b]pyrazine-7-carboxylic acid methyl ester; Thieno[2,3-b]pyrazine-7-carboxylic acid, 6-amino-, methyl ester; 243463-05-0; Methyl 6-amino-7-thieno[2,3-b]pyrazinecarboxylate
EINECS	Contact for details

Quality Control

Our production of Thieno[2,3-B]Pyrazine-7-Carboxylic Acid, 6-Amino-, Methyl Ester adheres to stringent quality management protocols. Each batch undergoes comprehensive analytical testing, including HPLC, NMR, and MS, to ensure identity, purity, and consistency. Certificates of Analysis (COA) detailing all specifications are provided with every shipment. We support cGMP-compliant manufacturing for pharmaceutical applications and can tailor purity grades to meet specific project 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 nature, the container must be kept tightly sealed after opening to prevent moisture absorption, which may affect stability and performance. Keep away from incompatible materials.

Specification

Item	Specification
Appearance	Yellow to light brown powder
Identification (IR)	Conforms to structure
Identification (HPLC)	Conforms to reference standard
Purity (HPLC)	≥ 97.0%
Water Content (KF)	≤ 1.0%
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.