Description

4-Chloro-5,7-Dihydrothieno[3,4-D]Pyrimidine is a high-value heterocyclic building block and pharmaceutical intermediate. This compound is essential for the synthesis of complex molecules, particularly in medicinal chemistry and drug discovery programs. It is primarily sought after by research institutions and manufacturers in the pharmaceutical and agrochemical sectors for developing novel active ingredients.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of potential therapeutic agents, including kinase inhibitors and other small-molecule drugs.
• Agrochemical Research: Used in the development of new herbicides, fungicides, and pesticides due to its bioactive thienopyrimidine core.
• Organic Synthesis Building Block: Serves as a versatile scaffold for constructing more complex heterocyclic compounds in academic and industrial R&D.
• Material Science: Investigated for use in the creation of organic electronic materials and specialty polymers.
• Biochemical Tool Compound: Utilized in life sciences research as a probe or inhibitor to study biological pathways and enzyme functions.

Basic Information

Product Name	4-Chloro-5,7-Dihydrothieno[3,4-D]Pyrimidine
CAS No.	53826-89-4
Molecular Formula	C6H5ClN2S
Molecular Weight	172.63 g/mol
Synonyms	4-Chloro-5,7-dihydrothieno[3,4-d]pyrimidine; 4-Chloro-5,7-dihydrothieno[3,4-d]pyrimidine; Thieno[3,4-d]pyrimidine, 4-chloro-5,7-dihydro-; 4-Chlorothieno[3,4-d]pyrimidine-5,7-dihydro; 53826-89-4; 4-Chloro-5,7-dihydrothieno(3,4-d)pyrimidine; 4-Chloro-5,7-dihydro-thieno[3,4-d]pyrimidine
EINECS	Contact for details

Quality Control

We maintain stringent quality control protocols for all our fine chemical intermediates. Production follows current Good Manufacturing Practices (cGMP) where applicable, and each batch is analyzed to ensure high purity and consistency. A comprehensive Certificate of Analysis (COA) detailing identity, purity (typically by HPLC), and impurity profiles is provided with every shipment to guarantee traceability and compliance with your project specifications.

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). Keep away from incompatible materials. The container should be kept tightly sealed to protect this light-sensitive material from degradation.

Specification

Item	Specification
Appearance	White to off-white powder or crystalline solid
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0% (Standard Grade)
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.