Description

4-Chloro-2-(Dichloromethyl)-5,6-Dimethylthieno[2,3-D]Pyrimidine CAS NO 128276-98-2 is a high-purity, heterocyclic organic compound belonging to the thienopyrimidine class, serving as a critical advanced pharmaceutical intermediate (API) and a versatile building block for chemical synthesis. Its unique molecular architecture makes it a valuable scaffold for developing novel active ingredients, particularly in medicinal chemistry and agrochemical research. This compound is essential for R&D laboratories and production facilities focused on creating new therapeutic agents, crop protection solutions, and specialty fine chemicals.

Application

• Pharmaceutical Intermediate: A key building block in the synthesis of novel drug candidates, particularly for targeted therapies.
• Agrochemical Research: Used in the development of new pesticides, herbicides, and fungicides due to its bioactive heterocyclic core.
• Chemical Synthesis: Serves as a versatile precursor for constructing complex molecular architectures in organic and medicinal chemistry.
• Material Science: Potential applications in the research and development of organic electronic materials and specialty polymers.
• Academic & Industrial R&D: A valuable reagent for exploratory research in universities and corporate R&D centers.
• Custom Synthesis: Used as a starting material for the contract manufacturing of bespoke fine chemicals and APIs.

Basic Information

Product Name	4-Chloro-2-(Dichloromethyl)-5,6-Dimethylthieno[2,3-D]Pyrimidine
CAS No.	128276-98-2
Molecular Formula	C10H7Cl3N2S
Molecular Weight	293.59 g/mol
Synonyms	4-Chloro-2-(dichloromethyl)-5,6-dimethylthieno[2,3-d]pyrimidine; Thieno[2,3-d]pyrimidine, 4-chloro-2-(dichloromethyl)-5,6-dimethyl-; 5,6-Dimethyl-4-chloro-2-(dichloromethyl)thieno[2,3-d]pyrimidine; 2-(Dichloromethyl)-4-chloro-5,6-dimethylthieno[2,3-d]pyrimidine; 4-Chloro-2-dichloromethyl-5,6-dimethyl-thieno[2,3-d]pyrimidine; CAS 128276-98-2
EINECS	Contact for details

Quality Control

Our 4-Chloro-2-(Dichloromethyl)-5,6-Dimethylthieno[2,3-D]Pyrimidine is manufactured under strict quality management systems to ensure batch-to-batch consistency and high purity. Each lot undergoes comprehensive analytical testing, including HPLC, NMR, and mass spectrometry, to confirm identity and purity. Certificates of Analysis (COA) detailing all specifications are provided with every shipment. We adhere to cGMP principles where applicable to support our clients in pharmaceutical and advanced agrochemical development.

Storage

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

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (HPLC)	Conforms to reference standard
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
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.