Description

Methyl 4-Chloro-5-Methyl-Thieno[2,3-D]Pyrimidine-6-Carboxylate is a high-value heterocyclic building block critical for advanced organic synthesis. This compound serves as a key intermediate in the development of novel active pharmaceutical ingredients (APIs) and agrochemicals, where its unique fused ring system enables the construction of complex molecular architectures. It is primarily sought after by research institutions and manufacturers in the pharmaceutical, agrochemical, and specialty chemical industries for lead optimization and process development.

Application

• Pharmaceutical Intermediate: A crucial precursor in the synthesis of kinase inhibitors and other targeted therapeutic agents.
• Agrochemical Research: Used in the development of new herbicides and fungicides with novel modes of action.
• Chemical Biology: Serves as a scaffold for designing molecular probes and enzyme inhibitors in drug discovery.
• Material Science: Potential building block for organic electronic materials due to its thienopyrimidine core.
• Contract Research & Manufacturing (CRO/CMO): Supplied to organizations specializing in custom synthesis and process scale-up.

Basic Information

Product Name	Methyl 4-Chloro-5-Methyl-Thieno[2,3-D]Pyrimidine-6-Carboxylate
CAS No.	832113-96-9
Molecular Formula	C9H7ClN2O2S
Molecular Weight	242.68 g/mol
Synonyms	Methyl 4-chloro-5-methylthieno[2,3-d]pyrimidine-6-carboxylate; 4-Chloro-5-methylthieno[2,3-d]pyrimidine-6-carboxylic acid methyl ester; Thieno[2,3-d]pyrimidine-6-carboxylic acid, 4-chloro-5-methyl-, methyl ester; CAS 832113-96-9
EINECS	Contact for details

Quality Control

Our production of Methyl 4-Chloro-5-Methyl-Thieno[2,3-D]Pyrimidine-6-Carboxylate adheres to stringent quality management protocols. Every batch is characterized and tested using advanced analytical techniques including HPLC, GC, 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 inert atmosphere conditions to maintain optimal stability.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Identification (HPLC)	Conforms to reference standard
Purity (HPLC)	≥ 98.0%
Related Substances (HPLC)	Total impurities ≤ 2.0%
Single Maximum Impurity	≤ 0.5%
Residual Solvents (GC)	Complies with ICH guidelines
Loss on Drying	≤ 0.5%

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