Description

2-Mercapto-3,6-Dimethyl-6,7-Dihydrothieno[3,2-D]Pyrimidin-4(3H)-One is a high-value heterocyclic building block and advanced pharmaceutical intermediate. This compound matters for its role in the synthesis of complex molecules, particularly in medicinal chemistry where its fused thienopyrimidine core is a key structural motif. It is primarily needed by research institutions and pharmaceutical companies engaged in the development of new active pharmaceutical ingredients (APIs) and novel therapeutic agents.

Application

• Pharmaceutical Intermediate: A critical building block for the synthesis of potential drug candidates, particularly in oncology and antiviral research.
• Medicinal Chemistry Research: Used in structure-activity relationship (SAR) studies and lead optimization for novel therapeutic targets.
• Organic Synthesis: Serves as a versatile precursor for constructing complex heterocyclic frameworks in academic and industrial R&D.
• Agrochemical Development: Potential intermediate in the research and synthesis of new crop protection agents and pesticides.
• Material Science: Investigated as a monomer or precursor for specialty polymers and advanced organic electronic materials.

Basic Information

Product Name	2-Mercapto-3,6-Dimethyl-6,7-Dihydrothieno[3,2-D]Pyrimidin-4(3H)-One
CAS No.	1105190-40-6
Molecular Formula	C9H10N2OS2
Molecular Weight	226.32 g/mol
Synonyms	2-Mercapto-3,6-dimethyl-6,7-dihydrothieno[3,2-d]pyrimidin-4(3H)-one; 6,7-Dihydro-3,6-dimethyl-2-mercaptothieno[3,2-d]pyrimidin-4(3H)-one; Thieno[3,2-d]pyrimidin-4(3H)-one, 6,7-dihydro-2-mercapto-3,6-dimethyl-; 1105190-40-6; 2-Thioxo-3,6-dimethyl-2,3,6,7-tetrahydrothieno[3,2-d]pyrimidin-4(1H)-one (tautomeric form)
EINECS	Contact for details

Quality Control

Our 2-Mercapto-3,6-Dimethyl-6,7-Dihydrothieno[3,2-D]Pyrimidin-4(3H)-One is produced under a strict quality management system. 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. Certificates of Analysis (COA) detailing batch-specific results are available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store under an inert atmosphere (e.g., nitrogen or argon) in a cool, dry place at a controlled room temperature (15-25°C). This compound is easily oxidized; prolonged exposure to air should be avoided.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Loss on Drying	≤ 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.