Description

4-Chloro-5-(4-Methoxyphenyl)Thieno[2,3-D]Pyrimidine is a high-purity, heterocyclic organic building block of significant interest in advanced chemical synthesis. This compound matters as a critical intermediate for developing novel active pharmaceutical ingredients (APIs) and agrochemicals, offering a versatile scaffold for molecular diversification. Pharmaceutical research and development (R&D) departments, agrochemical innovators, and specialty chemical manufacturers need this precise chemical to drive their discovery pipelines and create next-generation products.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of kinase inhibitors and other targeted therapeutic agents.
• Agrochemical Research: Used as a building block for developing new herbicides, fungicides, and plant growth regulators.
• Material Science: Serves as a monomer or additive in the research of advanced organic electronic materials.
• Chemical Biology: Employed as a molecular probe or tag in biochemical assay development and target identification.
• Academic & Contract Research: Essential for organic chemistry research and custom synthesis projects in CROs and universities.

Basic Information

Item	Details
Product Name	4-Chloro-5-(4-Methoxyphenyl)Thieno[2,3-D]Pyrimidine
CAS No.	312584-53-5
Molecular Formula	C13H9ClN2OS
Molecular Weight	276.74 g/mol
Synonyms	4-Chloro-5-(4-methoxyphenyl)thieno[2,3-d]pyrimidine; 4-Chloro-5-(p-methoxyphenyl)thieno[2,3-d]pyrimidine; Thieno[2,3-d]pyrimidine, 4-chloro-5-(4-methoxyphenyl)-; 312584-53-5; 4-Chloro-5-(4'-methoxyphenyl)thieno[2,3-d]pyrimidine
EINECS	Contact for details

Quality Control

Our 4-Chloro-5-(4-Methoxyphenyl)Thieno[2,3-D]Pyrimidine is manufactured under a strict quality management system. Every batch undergoes rigorous analytical testing, including HPLC, NMR, and MS, to ensure identity, purity, and consistency. A comprehensive Certificate of Analysis (COA) detailing all specifications is provided with each shipment to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (typically 15-25°C). Keep away from incompatible materials. For long-term storage, consider storage under an inert atmosphere.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (HPLC)	Conforms
Identification (IR)	Conforms
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.