Description

4,5-Dichlorothieno[2,3-D]Pyrimidine is a high-purity heterocyclic building block of significant importance in advanced organic synthesis. This compound serves as a critical intermediate for the development of novel active pharmaceutical ingredients (APIs) and agrochemicals. It is primarily sought after by research institutions and manufacturers in the pharmaceutical, agrochemical, and specialty chemical industries for constructing complex molecular architectures.

Application

• Pharmaceutical Intermediate: Key synthon for the research and development of potential drug candidates, particularly in kinase inhibitor and antiviral therapeutic areas.
• Agrochemical Synthesis: Used in the production of advanced herbicides, fungicides, and insecticides, leveraging its unique thienopyrimidine core.
• Material Science Research: Serves as a precursor for organic electronic materials, such as organic semiconductors and light-emitting diodes (OLEDs).
• Chemical Biology: Employed as a molecular scaffold or probe in biochemical research and discovery.
• Custom Synthesis & Contract Manufacturing: A vital starting material for custom synthesis houses serving the life sciences sector.

Basic Information

Product Name	4,5-Dichlorothieno[2,3-D]Pyrimidine
CAS No.	137240-10-9
Molecular Formula	C6H2Cl2N2S
Molecular Weight	205.06 g/mol
Synonyms	4,5-Dichlorothieno[2,3-d]pyrimidine; Thieno[2,3-d]pyrimidine, 4,5-dichloro-; 4,5-Dichloro-thieno[2,3-d]pyrimidine; 137240-10-9; 4,5-Dichloro-thieno[2,3-d]pyrimidin; 4,5-Dichlorothieno(2,3-d)pyrimidine
EINECS	Contact for details

Quality Control

Our 4,5-Dichlorothieno[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 high chemical purity and identity confirmation. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing all relevant specifications. Our quality commitment aligns with cGMP principles for pharmaceutical intermediates.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep away from strong oxidizing agents and strong bases. For long-term storage, consider storing under an inert atmosphere.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Melting Point	Contact for details
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.