Description

4-Chloro-5,6-Dimethylthieno[2,3-D]Pyrimidine is a high-value heterocyclic building block and key synthetic intermediate. This compound is essential for research and development in advanced organic synthesis, particularly for constructing complex molecular architectures. It is primarily sought after by pharmaceutical R&D teams and fine chemical manufacturers for applications in medicinal chemistry and material science.

Application

• Pharmaceutical Intermediate: A crucial precursor in the synthesis of novel drug candidates, particularly kinase inhibitors and other targeted therapeutics.
• Agrochemical Research: Used in the development of new active ingredients for crop protection products.
• Material Science: Serves as a building block for organic electronic materials, such as semiconductors and light-emitting compounds.
• Chemical Biology: Employed in the design and synthesis of molecular probes and biochemical tools.
• Academic & Industrial R&D: A versatile scaffold for method development and exploration of new chemical reactions in heterocyclic chemistry.

Basic Information

Product Name	4-Chloro-5,6-Dimethylthieno[2,3-D]Pyrimidine
CAS No.	108831-68-1
Molecular Formula	C8H7ClN2S
Molecular Weight	198.67 g/mol
Synonyms	4-Chloro-5,6-dimethylthieno[2,3-d]pyrimidine; Thieno[2,3-d]pyrimidine, 4-chloro-5,6-dimethyl-; 5,6-Dimethyl-4-chlorothieno[2,3-d]pyrimidine; 4-Chloro-5,6-dimethyl-thieno[2,3-d]pyrimidine; 108831-68-1; 4-Chloro-5,6-dimethylthieno[2,3-d]pyrimidine; 4-Chloro-5,6-dimethyl-thieno[2,3-d]pyrimidine
EINECS	Contact for details

Quality Control

Our production of 4-Chloro-5,6-Dimethylthieno[2,3-D]Pyrimidine adheres to stringent internal quality protocols to ensure batch-to-batch consistency and high purity. We provide comprehensive analytical data, including HPLC chromatograms and NMR spectra, with each shipment. Certificates of Analysis (COA) detailing identity, purity, and impurity profiles are available upon request and are standard for all commercial orders.

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.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Identification (HPLC)	Retention time matches reference standard
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.