Description

7-Amino-3-Methylthieno[2,3-B]Pyrazine-6-Carboxylic Acid is a high-purity, advanced pharmaceutical intermediate with the CAS registry number 2123445-28-1. This heterocyclic compound is a critical building block in the synthesis of novel active pharmaceutical ingredients (APIs), particularly for targeted therapies. It is essential for research and development chemists and manufacturers in the pharmaceutical and biotechnology sectors seeking to develop new drug candidates.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of complex heterocyclic APIs for various therapeutic areas.
• Antiviral Drug Research: Used in the development of novel antiviral compounds due to its fused thienopyrazine scaffold.
• Oncology Research: Serves as a core structure for designing kinase inhibitors and other targeted cancer therapeutics.
• Chemical Synthesis Building Block: Provides a versatile amino-acid functionalized heterocycle for medicinal chemistry and process R&D.
• Agrochemical Intermediate: Potential use in the synthesis of new crop protection agents with specific biological activity.
• Material Science Research: Investigated as a monomer or precursor for functional organic materials and dyes.

Basic Information

Product Name	7-Amino-3-Methylthieno[2,3-B]Pyrazine-6-Carboxylic Acid
CAS No.	2123445-28-1
Molecular Formula	C8H7N3O2S
Molecular Weight	209.23 g/mol
Synonyms	7-Amino-3-methylthieno[2,3-b]pyrazine-6-carboxylic acid; 3-Methyl-7-aminothieno[2,3-b]pyrazine-6-carboxylic acid; Thieno[2,3-b]pyrazine-6-carboxylic acid, 7-amino-3-methyl-; 2123445-28-1; 7-Amino-3-methylthieno[2,3-b]pyrazine-6-carboxylate
EINECS	Contact for details

Quality Control

Our 7-Amino-3-Methylthieno[2,3-B]Pyrazine-6-Carboxylic Acid is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure it meets the high standards required for pharmaceutical R&D and cGMP manufacturing. A comprehensive Certificate of Analysis (COA) detailing all specifications is provided with every shipment.

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). This product is hygroscopic (moisture-sensitive) and must be kept under dry, inert conditions to maintain stability and purity. Keep away from incompatible materials.

Specification

Item	Specification
Appearance	Off-white to light yellow powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Loss on Drying	≤ 1.0%
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 20 ppm
Single Unknown Impurity (HPLC)	≤ 0.5%
Total Impurities (HPLC)	≤ 2.0%

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