Description

Thieno[2,3-B]Pyrazine-2,3-Dione, 1,4-Dihydro-7-Methyl- (9Ci) CAS NO 149587-33-7 is a high-purity, heterocyclic organic compound belonging to the fused thienopyrazinedione class, serving as a critical advanced intermediate in modern synthetic chemistry. Its unique molecular architecture makes it a valuable building block for the development of novel pharmaceuticals and functional materials. This compound is primarily sought by research institutions and industrial R&D departments focused on medicinal chemistry, agrochemicals, and material science.

Application

• Pharmaceutical Intermediate: Key precursor in the synthesis of potential drug candidates, particularly for central nervous system (CNS) and anti-infective agents.
• Agrochemical Research: Used in developing novel active ingredients for crop protection products, leveraging its heterocyclic core.
• Organic Electronic Materials: Serves as a building block for π-conjugated systems in the research of organic semiconductors and light-emitting materials.
• Dye & Pigment Synthesis: Intermediate for creating specialized heterocyclic dyes and pigments with specific optical properties.
• Academic & Contract Research: Essential reagent for methodological studies and library synthesis in academic and CRO (Contract Research Organization) settings.
• Ligand & Catalyst Development: Used to synthesize novel chelating ligands and organocatalysts for asymmetric synthesis.

Basic Information

Product Name	Thieno[2,3-B]Pyrazine-2,3-Dione, 1,4-Dihydro-7-Methyl- (9Ci)
CAS No.	149587-33-7
Molecular Formula	C7H6N2O2S
Molecular Weight	182.20 g/mol
Synonyms	1,4-Dihydro-7-methylthieno[2,3-b]pyrazine-2,3-dione; 7-Methyl-1,4-dihydrothieno[2,3-b]pyrazine-2,3-dione; 7-Methyl-1H-thieno[2,3-b]pyrazine-2,3(4H)-dione; 1,4-Dihydro-7-methyl-thieno[2,3-b]pyrazine-2,3-dione; Thieno[2,3-b]pyrazine-2,3(1H,4H)-dione, 7-methyl-; 149587-33-7 (CAS Index Name)
EINECS	Contact for details

Quality Control

Our Thieno[2,3-B]Pyrazine-2,3-Dione, 1,4-Dihydro-7-Methyl- (9Ci) is manufactured under strict quality management systems. Every batch undergoes rigorous analytical testing, including HPLC, NMR, and MS, to ensure identity, purity, and consistency. Certificates of Analysis (COA) detailing all specifications are provided and available upon request to support your quality assurance and regulatory documentation needs.

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; prolonged exposure to light should be avoided.

Specification

Item	Specification
Appearance	Off-white to light yellow crystalline powder
Identification (IR)	Conforms to structure
Identification (HPLC)	Conforms to reference
Purity (HPLC)	≥ 98.0%
Water Content (KF)	≤ 0.5%
Residue on Ignition	≤ 0.1%
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.