Description

5-(4-Chlorophenyl)-6-Methylthieno[2,3-D]Pyrimidine-4(3H)-Thione is a high-purity, advanced pharmaceutical intermediate with a distinctive thienopyrimidine-thione core structure. This compound is valued for its role as a critical building block in the synthesis of novel active pharmaceutical ingredients (APIs), particularly in therapeutic areas requiring targeted molecular scaffolds. It is primarily sought by research institutions and pharmaceutical manufacturers engaged in drug discovery and development programs.

Application

• Pharmaceutical Intermediate: Serves as a key precursor in the synthesis of potential drug candidates targeting various diseases.
• Organic Synthesis Building Block: Used in research-scale and process chemistry for constructing complex heterocyclic compounds.
• Medicinal Chemistry Research: Employed in structure-activity relationship (SAR) studies to develop new therapeutic agents.
• Reference Standard: Utilized as an analytical standard for quality control and method development in API manufacturing.
• Biochemical Research: Investigated for its potential biological activity and enzyme inhibition properties.

Basic Information

Product Name	5-(4-Chlorophenyl)-6-Methylthieno[2,3-D]Pyrimidine-4(3H)-Thione
CAS No.	500198-74-3
Molecular Formula	C13H9ClN2S2
Molecular Weight	292.80 g/mol
Synonyms	5-(4-Chlorophenyl)-6-methyl-3,4-dihydrothieno[2,3-d]pyrimidine-4-thione; 6-Methyl-5-(4-chlorophenyl)thieno[2,3-d]pyrimidine-4(3H)-thione; 4H-Thieno[2,3-d]pyrimidine-4-thione, 5-(4-chlorophenyl)-3,6-dihydro-6-methyl-; Thieno[2,3-d]pyrimidine-4(3H)-thione derivative; CAS 500198-74-3
EINECS	Contact for details

Quality Control

Our production of 5-(4-Chlorophenyl)-6-Methylthieno[2,3-D]Pyrimidine-4(3H)-Thione adheres to stringent quality management protocols to ensure batch-to-batch consistency and high purity. Each lot is fully characterized and tested using advanced analytical techniques including HPLC, NMR, and MS. 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 controlled room temperature (15-25°C). Keep away from incompatible materials. For long-term storage, consider inert atmosphere conditions to ensure stability.

Specification

Item	Specification
Appearance	Yellow to light brown crystalline powder
Identification (IR)	Conforms to structure
Identification (HPLC)	Retention time matches reference standard
Purity (HPLC)	≥ 98.0%
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.