Description

3-(4-Ethoxy-Phenyl)-2-Mercapto-5,6,7,8-Tetrahydro-3H-Benzo[4,5]Thieno[2,3-D]Pyrimidin-4-One is a high-value, complex heterocyclic compound that serves as a critical synthetic intermediate in advanced pharmaceutical research and development. Its unique fused ring structure, incorporating pyrimidine and thiophene moieties, makes it a versatile building block for creating novel bioactive molecules. This compound is primarily sought after by R&D chemists and process development scientists in the pharmaceutical and agrochemical industries for the synthesis of potential drug candidates and other specialty chemicals.

Application

• Pharmaceutical Intermediate: Key building block in the synthesis of novel therapeutic agents, particularly in central nervous system (CNS) and oncology research.
• Chemical Biology Probe: Used in medicinal chemistry to study structure-activity relationships (SAR) and enzyme inhibition mechanisms.
• Agrochemical Research: Serves as a precursor in the development of new pesticides and herbicides with specific modes of action.
• Material Science: Potential intermediate for the synthesis of organic electronic materials and advanced polymers due to its conjugated system.
• Academic & Contract Research: Essential for university laboratories and CROs (Contract Research Organizations) engaged in heterocyclic chemistry and drug discovery projects.
• Process Chemistry: Used in scale-up and optimization studies for the commercial production of active pharmaceutical ingredients (APIs).

Basic Information

Product Name	3-(4-Ethoxy-Phenyl)-2-Mercapto-5,6,7,8-Tetrahydro-3H-Benzo[4,5]Thieno[2,3-D]Pyrimidin-4-One
CAS No.	65234-03-9
Molecular Formula	C19H18N2O2S2
Molecular Weight	370.49 g/mol
Synonyms	3-(4-Ethoxyphenyl)-2-mercapto-5,6,7,8-tetrahydro-3H-benzo[4,5]thieno[2,3-d]pyrimidin-4-one; 2-Mercapto-3-(4-ethoxyphenyl)-5,6,7,8-tetrahydro-4H-benzo[4,5]thieno[2,3-d]pyrimidin-4-one; Benzo[4,5]thieno[2,3-d]pyrimidin-4-one, 3-(4-ethoxyphenyl)-2-mercapto-5,6,7,8-tetrahydro-3H-; 65234-03-9; 3-(4-Ethoxy-phenyl)-2-mercapto-5,6,7,8-tetrahydro-3H-benzo[4,5]thieno[2,3-d]pyrimidin-4-one
EINECS	Contact for details

Quality Control

Our production of 3-(4-Ethoxy-Phenyl)-2-Mercapto-5,6,7,8-Tetrahydro-3H-Benzo[4,5]Thieno[2,3-D]Pyrimidin-4-One adheres to stringent quality protocols to ensure batch-to-batch consistency and high purity for research applications. Each lot is characterized using advanced analytical techniques including HPLC, NMR, and mass spectrometry. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profile is provided with every shipment, supporting your regulatory and quality documentation needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (15-25°C). Due to its light-sensitive and easily oxidized nature, it is recommended to store the material under an inert atmosphere (e.g., nitrogen or argon) for long-term preservation. Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	Off-white to light yellow crystalline powder
Identification (IR)	Conforms to structure
Identification (HPLC)	Retention time matches reference standard
Purity (HPLC)	≥ 97.0%
Water Content (KF)	≤ 0.5%
Residue on Ignition	≤ 0.1%
Single Unknown Impurity (HPLC)	≤ 1.0%
Total Impurities (HPLC)	≤ 3.0%

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