Description

2-Mercapto-3-Phenyl-5,6,7,8-Tetrahydro-3H-Benzo[4,5]Thieno[2,3-D]Pyrimidin-4-One is a high-value heterocyclic organic compound that serves as a critical building block in advanced chemical synthesis. Its complex fused-ring structure makes it an essential intermediate for developing novel active pharmaceutical ingredients (APIs) and specialty agrochemicals. This product is primarily sought by R&D and process development teams in the pharmaceutical, agrochemical, and fine chemical industries for its unique scaffold.

Application

• Pharmaceutical Intermediate: Key precursor in the synthesis of novel drug candidates, particularly those targeting central nervous system (CNS) disorders and other therapeutic areas.
• Agrochemical Research: Used as a core scaffold for developing new-generation herbicides, fungicides, and insecticides with specific modes of action.
• Material Science: Potential building block for organic electronic materials and advanced polymers due to its conjugated thienopyrimidine system.
• Chemical Biology: Serves as a versatile probe or ligand in medicinal chemistry programs for structure-activity relationship (SAR) studies.
• Academic & Contract Research: Utilized in university and CRO laboratories for fundamental research in heterocyclic chemistry and new reaction methodology development.

Basic Information

Product Name	2-Mercapto-3-Phenyl-5,6,7,8-Tetrahydro-3H-Benzo[4,5]Thieno[2,3-D]Pyrimidin-4-One
CAS No.	42076-13-1
Molecular Formula	C17H14N2OS2
Molecular Weight	326.43 g/mol
Synonyms	3-Phenyl-2-thioxo-2,3,5,6,7,8-hexahydro-1H-benzo[4,5]thieno[2,3-d]pyrimidin-4-one; 2-Thioxo-3-phenyl-2,3,5,6,7,8-hexahydro-1H-benzo[4,5]thieno[2,3-d]pyrimidin-4-one; 2-Mercapto-3-phenyl-5,6,7,8-tetrahydrobenzo[4,5]thieno[2,3-d]pyrimidin-4(3H)-one; 42076-13-1; Benzo[4,5]thieno[2,3-d]pyrimidin-4-one, 2-mercapto-3-phenyl-5,6,7,8-tetrahydro-3H-; 3-Phenyl-2-sulfanylidene-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 2-Mercapto-3-Phenyl-5,6,7,8-Tetrahydro-3H-Benzo[4,5]Thieno[2,3-D]Pyrimidin-4-One adheres to strict quality management protocols to ensure batch-to-batch consistency and high purity. 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 profiles is provided with every shipment to support your quality and regulatory requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). Due to its sensitivity to oxidation, it is recommended to store the product under an inert atmosphere (e.g., nitrogen or argon) for long-term stability. Keep away from heat, sparks, and open flame.

Specification

Item	Specification
Appearance	Off-white to pale yellow crystalline powder
Identification (IR)	Conforms to structure
Identification (HPLC)	Retention time matches reference standard
Purity (HPLC)	≥ 97.0%
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.