Description

6-T-Butyl-4-Chlorothieno[3,2-D]Pyrimidine is a high-purity, advanced heterocyclic building block and pharmaceutical intermediate. This compound is valued for its unique molecular scaffold, which is integral to the synthesis of novel active pharmaceutical ingredients (APIs) and agrochemicals. It is primarily sought by R&D chemists and process development teams in the pharmaceutical, agrochemical, and specialty chemical industries for creating compounds with targeted biological activity.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of novel small-molecule drug candidates, particularly in oncology and antiviral research.
• Agrochemical Synthesis: Used as a building block for developing new generation herbicides, fungicides, and insecticides with improved efficacy.
• Material Science Research: Serves as a monomer or functional unit in the development of organic electronic materials and specialty polymers.
• Chemical Biology & Proteomics: Employed as a molecular probe or tag in biochemical research to study enzyme interactions and cellular pathways.
• Custom Synthesis & Contract Manufacturing: Supplied to CDMOs (Contract Development and Manufacturing Organizations) for custom synthesis projects requiring this specific heterocyclic core.

Basic Information

Product Name	6-T-Butyl-4-Chlorothieno[3,2-D]Pyrimidine
CAS No.	439693-52-4
Molecular Formula	C10H11ClN2S
Molecular Weight	226.72 g/mol
Synonyms	6-tert-Butyl-4-chlorothieno[3,2-d]pyrimidine; 4-Chloro-6-(tert-butyl)thieno[3,2-d]pyrimidine; 6-(1,1-Dimethylethyl)-4-chlorothieno[3,2-d]pyrimidine; 4-Chloro-6-tert-butylthieno[3,2-d]pyrimidine; Thieno[3,2-d]pyrimidine, 4-chloro-6-(1,1-dimethylethyl)-; 439693-52-4; 6-Tert-Butyl-4-Chloro-Thieno[3,2-D]Pyrimidine
EINECS	Contact for details

Quality Control

Our 6-T-Butyl-4-Chlorothieno[3,2-D]Pyrimidine is manufactured under strict quality management systems. Every batch undergoes rigorous analytical testing, including HPLC, GC, and NMR, to ensure high chemical purity and structural integrity. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with each shipment to support your quality assurance and regulatory documentation needs.

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). Keep away from incompatible materials such as strong oxidizing agents. For long-term storage, consider storing under an inert atmosphere to maintain product stability.

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%
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.