Description

2,4-Dichloro-6,7-Dihydrothieno[3,2-D]Pyrimidine is a high-value heterocyclic building block and key synthetic intermediate in advanced organic chemistry. This compound matters for its role as a versatile precursor in the development of complex pharmacologically active molecules, enabling the creation of novel chemical entities. It is primarily needed by research institutions and manufacturers in the pharmaceutical, agrochemical, and material science industries for drug discovery and fine chemical synthesis.

Application

• Pharmaceutical Intermediate: A critical precursor in the synthesis of kinase inhibitors and other targeted therapeutic agents.
• Agrochemical Research: Used in developing novel fungicides and herbicides with specific modes of action.
• Material Science: Serves as a building block for organic semiconductors and advanced polymeric materials.
• Chemical Synthesis: Employed in academic and industrial R&D for constructing complex thienopyrimidine scaffolds.
• Custom Synthesis: A starting material for contract research organizations (CROs) and CDMOs producing client-specific compounds.

Basic Information

Item	Details
Product Name	2,4-Dichloro-6,7-Dihydrothieno[3,2-D]Pyrimidine
CAS No.	74901-69-2
Molecular Formula	C6H4Cl2N2S
Molecular Weight	207.08 g/mol
Synonyms	2,4-Dichloro-6,7-dihydro-5H-thieno[3,2-d]pyrimidine; 6,7-Dihydro-2,4-dichlorothieno[3,2-d]pyrimidine; Thieno[3,2-d]pyrimidine, 2,4-dichloro-6,7-dihydro-; 74901-69-2; 2,4-Dichloro-5,6,7,8-tetrahydrothieno[3,2-d]pyrimidine (common misnomer); 2,4-Dichloro-6,7-dihydrothienopyrimidine; Dihydrothienopyrimidine dichloride derivative
EINECS	Contact for details

Quality Control

Our 2,4-Dichloro-6,7-Dihydrothieno[3,2-D]Pyrimidine is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC, NMR, and GC-MS, to ensure identity, purity, and consistency. Certificates of Analysis (COA) with detailed specifications are provided for every shipment, supporting compliance in cGMP and ISO 9001 environments for research and development use.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (15-25°C). Keep away from strong oxidizing agents and incompatible materials.

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.