Description

2,4-Dichlorothieno[3,4-D]Pyrimidine CAS NO 36948-21-7 is a high-value heterocyclic building block characterized by its fused thienopyrimidine core and reactive chlorine substituents. This compound matters as a critical intermediate in advanced organic synthesis, enabling the construction of complex molecular architectures for research and development. It is primarily needed by pharmaceutical and agrochemical R&D teams for the discovery of new active ingredients, as well as by specialty chemical manufacturers producing advanced materials.

Application

• Pharmaceutical Intermediate: A key synthon for the development of novel drug candidates, particularly in kinase inhibitor and antiviral research.
• Agrochemical Synthesis: Used in the research and production of advanced herbicides, fungicides, and plant growth regulators.
• Material Science Research: Serves as a precursor for organic electronic materials, such as semiconductors and conductive polymers.
• Chemical Biology: Employed as a molecular scaffold or probe in biochemical and pharmacological studies.
• Custom Synthesis: A versatile starting material for contract research organizations (CROs) and fine chemical manufacturers performing bespoke synthesis.

Basic Information

Product Name	2,4-Dichlorothieno[3,4-D]Pyrimidine
CAS No.	36948-21-7
Molecular Formula	C6H2Cl2N2S
Molecular Weight	205.06 g/mol
Synonyms	2,4-Dichlorothieno[3,4-d]pyrimidine; Thieno[3,4-d]pyrimidine, 2,4-dichloro-; 2,4-Dichloro-thieno[3,4-d]pyrimidine; 2,4-Dichloro-7-thia-1,3a,5-triazaindene; 36948-21-7; 2,4-Dichloro-7-thia-1,3a-diazaindene; 2,4-Dichloro-thienopyrimidine
EINECS	Contact for details

Quality Control

Our 2,4-Dichlorothieno[3,4-D]Pyrimidine is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing to ensure identity, purity, and consistency. We provide comprehensive Certificates of Analysis (COA) with key parameters including assay, impurity profile, and physical characterization. Our quality commitment supports applications requiring high-purity intermediates for research and development.

Storage

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

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%

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