Description

2-Mercapto-7-Methyl-3-Phenyl-5,6,7,8-Tetrahydro-3H-Benzo[4,5]Thieno[2,3-D]Pyrimidin-4-One is a complex heterocyclic compound that serves as a critical synthetic intermediate in advanced pharmaceutical research and development. Its unique fused ring structure containing sulfur and nitrogen atoms makes it a valuable scaffold for creating novel active pharmaceutical ingredients (APIs). This compound is primarily sought by research institutions and pharmaceutical companies engaged in the discovery of new therapeutic agents, particularly in areas requiring sophisticated molecular architectures.

Application

• Pharmaceutical Intermediate: Key building block in the synthesis of novel drug candidates targeting various disease pathways.
• Chemical Biology Research: Used as a probe or precursor in studying enzyme inhibition and receptor-ligand interactions due to its thienopyrimidine core.
• Organic Synthesis Reference Standard: Serves as a high-purity standard for analytical method development and validation in QC laboratories.
• Material Science Research: Potential precursor for the development of organic electronic materials or metal-organic frameworks (MOFs).
• Contract Research & Development (CRO): Supplied to CROs and CDMOs for custom synthesis projects and process development.
• Academic Research: Utilized in university laboratories for methodological studies in heterocyclic and medicinal chemistry.

Basic Information

Product Name	2-Mercapto-7-Methyl-3-Phenyl-5,6,7,8-Tetrahydro-3H-Benzo[4,5]Thieno[2,3-D]Pyrimidin-4-One
CAS No.	299919-85-0
Molecular Formula	C18H16N2OS2
Molecular Weight	340.46 g/mol
Synonyms	7-Methyl-3-phenyl-2-sulfanyl-5,6,7,8-tetrahydro-3H-benzo[4,5]thieno[2,3-d]pyrimidin-4-one; 3H-Benzo[4,5]thieno[2,3-d]pyrimidin-4-one, 2-mercapto-7-methyl-3-phenyl-5,6,7,8-tetrahydro-; 2-Thioxo-7-methyl-3-phenyl-1,2,3,5,6,7,8,8a-octahydrobenzo[4,5]thieno[2,3-d]pyrimidin-4-one; Thienopyrimidinone derivative; Mercaptothienopyrimidinone
EINECS	Contact for details

Quality Control

Our 2-Mercapto-7-Methyl-3-Phenyl-5,6,7,8-Tetrahydro-3H-Benzo[4,5]Thieno[2,3-D]Pyrimidin-4-One is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including HPLC for purity, NMR and IR for structural confirmation, and residual solvent analysis. We provide a detailed Certificate of Analysis (COA) with every shipment, ensuring traceability and compliance with your research or development specifications. Custom purity grades and analytical packages 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. Keep the container tightly sealed when not in use to prevent moisture absorption and degradation.

Specification

Item	Specification
Appearance	Off-white to light yellow crystalline powder
Identification (IR)	Conforms to structure
Identification (NMR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Loss on Drying	≤ 0.5%
Residual Solvents (GC)	Meets ICH Q3C guidelines

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