Description

4-Chloro-2,5,6-Trimethylthieno[2,3-D]Pyrimidine is a high-purity heterocyclic building block of significant interest in advanced organic synthesis. This compound matters as a versatile and critical intermediate for constructing complex molecular architectures, particularly in pharmaceutical research and development. It is primarily needed by R&D chemists and process development scientists in the pharmaceutical, agrochemical, and specialty chemical industries for the synthesis of novel active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: A key synthon for the development of novel drug candidates, particularly in kinase inhibitor and antiviral research programs.
• Agrochemical Synthesis: Used in the research and production of advanced herbicides, fungicides, and pesticides with specific biological activity.
• Material Science Research: Serves as a precursor for organic electronic materials, such as organic semiconductors and light-emitting materials.
• Chemical Biology Probes: Employed in the design and synthesis of molecular probes for studying enzyme function and biological pathways.
• Custom Synthesis & Contract Manufacturing: A critical starting material for custom synthesis houses and CDMOs (Contract Development and Manufacturing Organizations) serving global clients.
• Academic & Institutional Research: Used in university and government laboratories for fundamental studies in heterocyclic chemistry and medicinal chemistry.

Basic Information

Product Name	4-Chloro-2,5,6-Trimethylthieno[2,3-D]Pyrimidine
CAS No.	83548-58-7
Molecular Formula	C9H9ClN2S
Molecular Weight	212.70 g/mol
Synonyms	4-Chloro-2,5,6-trimethylthieno[2,3-d]pyrimidine; Thieno[2,3-d]pyrimidine, 4-chloro-2,5,6-trimethyl-; 2,5,6-Trimethyl-4-chlorothieno[2,3-d]pyrimidine; 4-Chloro-2,5,6-trimethylthienopyrimidine; 83548-58-7; 4-Chloro-2,5,6-trimethyl[1]benzothieno[2,3-d]pyrimidine (common alternate naming); CTTP (abbreviation)
EINECS	Contact for details

Quality Control

Our 4-Chloro-2,5,6-Trimethylthieno[2,3-D]Pyrimidine is manufactured under strict quality management systems. Every batch undergoes rigorous analytical testing, including HPLC, NMR, and GC-MS, to ensure identity, purity, and consistency. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing all critical specifications. Our quality commitment aligns with cGMP principles for pharmaceutical intermediates, ensuring reliability for your most demanding synthesis applications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after opening to prevent degradation from atmospheric moisture. Keep away from incompatible materials.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to reference spectrum
Identification (HPLC)	Retention time matches reference standard
Assay (HPLC)	≥ 98.0%
Related Substances (HPLC)	Total impurities ≤ 2.0% Any single impurity ≤ 0.5%
Water Content (KF)	≤ 0.5%
Residue on Ignition	≤ 0.1%

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