Description

4-Chloro-2-Methyl-5,6,7,8-Tetrahydro[1]Benzothieno[2,3-D]Pyrimidine is a high-purity, heterocyclic organic compound serving as a critical building block in advanced chemical synthesis. This compound is valued for its unique fused-ring structure, which provides a versatile scaffold for developing novel active pharmaceutical ingredients (APIs) and agrochemicals. It is primarily sought by research institutions and industrial manufacturers in the pharmaceutical, agrochemical, and specialty chemical sectors for the development of new therapeutic and crop protection agents.

Application

This specialized chemical intermediate enables innovation across several high-value industries. Key application areas include:

• Pharmaceutical Intermediate: A key precursor in the synthesis of novel drug candidates, particularly in oncology and central nervous system (CNS) therapeutic research.
• Agrochemical Synthesis: Used as a core scaffold for developing new-generation herbicides, fungicides, and insecticides with enhanced efficacy.
• Chemical Research & Development: Serves as a versatile building block for exploring new heterocyclic chemistry and creating libraries of compounds for high-throughput screening.
• Material Science: Potential use in the development of organic electronic materials and advanced polymers due to its electron-rich fused-ring system.

Basic Information

Product Name	4-Chloro-2-Methyl-5,6,7,8-Tetrahydro[1]Benzothieno[2,3-D]Pyrimidine
CAS No.	81765-97-1
Molecular Formula	C11H11ClN2S
Molecular Weight	238.73 g/mol
Synonyms	4-Chloro-2-methyl-5,6,7,8-tetrahydro[1]benzothieno[2,3-d]pyrimidine; 4-Chloro-2-methyl-5,6,7,8-tetrahydrobenzo[4,5]thieno[2,3-d]pyrimidine; 81765-97-1; Benzothienopyrimidine derivative; 4-Chloro-2-methyltetrahydrobenzothienopyrimidine
EINECS	Contact for details

Quality Control

Our production of 4-Chloro-2-Methyl-5,6,7,8-Tetrahydro[1]Benzothieno[2,3-D]Pyrimidine adheres to stringent quality management protocols. Every batch undergoes comprehensive analytical testing, including HPLC, NMR, and GC-MS, to ensure identity, purity, and consistency. We provide detailed Certificates of Analysis (COA) with each shipment, documenting all critical quality attributes. Our quality system is designed to support cGMP and ISO standards for traceability and reliability, making this material suitable for demanding R&D and scale-up processes.

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 the container tightly sealed in a dry environment to minimize moisture uptake and ensure long-term stability.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 10 ppm

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.