Description

2-Mercapto-5,6-Dimethylthieno[2,3-D]Pyrimidin-4(3H)-One is a specialized heterocyclic organic compound that serves as a critical building block in advanced chemical synthesis. Its unique fused thienopyrimidine structure makes it a valuable intermediate for developing novel active pharmaceutical ingredients (APIs) and functional materials. This high-purity intermediate is essential for research and production in pharmaceutical chemistry, agrochemical development, and materials science.

Application

• Pharmaceutical Intermediate: Key precursor in the synthesis of novel drug candidates, particularly for therapeutic areas requiring complex heterocyclic scaffolds.
• Agrochemical Research: Building block for developing new generation pesticides and herbicides with specific biological activity.
• Material Science: Used in the research and development of organic electronic materials, such as semiconductors and light-emitting components.
• Chemical Synthesis: Versatile intermediate for constructing more complex fused-ring systems in medicinal and process chemistry.
• Academic & Industrial R&D: Serves as a standard or starting material for method development and exploratory synthesis in research laboratories.

Basic Information

Product Name	2-Mercapto-5,6-Dimethylthieno[2,3-D]Pyrimidin-4(3H)-One
CAS No.	38201-64-8
Molecular Formula	C8H8N2OS2
Molecular Weight	212.29 g/mol
Synonyms	5,6-Dimethyl-4-oxo-3,4-dihydrothieno[2,3-d]pyrimidine-2-thiol; 2-Thioxo-5,6-dimethyl-1,2,3,4-tetrahydrothieno[2,3-d]pyrimidin-4-one; 5,6-Dimethyl-2-mercaptothieno[2,3-d]pyrimidin-4(3H)-one; 38201-64-8; Thieno[2,3-d]pyrimidine-2-thiol, 5,6-dimethyl-4-oxo-3,4-dihydro-; 4(3H)-Thieno[2,3-d]pyrimidinone, 2-mercapto-5,6-dimethyl-
EINECS	Contact for details

Quality Control

Our 2-Mercapto-5,6-Dimethylthieno[2,3-D]Pyrimidin-4(3H)-One is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation via FT-IR and NMR spectroscopy, to ensure it meets the high standards required for research and industrial synthesis. Certificates of Analysis (COA) with detailed chromatographic data are provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated place at controlled room temperature (15-25°C). Due to its sensitivity, the product should be stored under an inert atmosphere (e.g., nitrogen or argon) to prevent oxidation. Keep away from heat, sparks, and open flame.

Specification

Item	Specification
Appearance	Off-white to light yellow crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 20 ppm

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