Description

4-Chlorothieno[3,2-D]Pyrimidine-6-Carboxylic Acid is a high-value heterocyclic building block and key synthetic intermediate in advanced organic chemistry. This compound is critical for the development of novel active pharmaceutical ingredients (APIs) and agrochemicals, where its unique fused ring system enables the creation of complex molecular architectures. It is primarily utilized by research scientists and process chemists in the pharmaceutical, agrochemical, and specialty chemical industries for drug discovery and process development.

Application

• Pharmaceutical Intermediate: A crucial building block for the synthesis of kinase inhibitors and other small molecule therapeutics targeting various disease pathways.
• Agrochemical Research: Used in the development of new herbicides, fungicides, and insecticides, leveraging its thienopyrimidine core.
• Chemical Biology: Serves as a scaffold or precursor for designing molecular probes and tool compounds to study biological processes.
• Material Science: Potential precursor for the synthesis of organic electronic materials due to its conjugated heterocyclic structure.
• Custom Synthesis & Contract Manufacturing: Supplied to CDMOs (Contract Development and Manufacturing Organizations) for custom synthesis projects and scale-up.
• Academic & Industrial R&D: Employed in research laboratories for methodological studies and the exploration of new chemical reactions.

Basic Information

Product Name	4-Chlorothieno[3,2-D]Pyrimidine-6-Carboxylic Acid
CAS No.	875515-76-7
Molecular Formula	C7H3ClN2O2S
Molecular Weight	214.63 g/mol
Synonyms	4-Chlorothieno[3,2-d]pyrimidine-6-carboxylic acid; 6-Carboxy-4-chlorothieno[3,2-d]pyrimidine; 4-Chloro-6-thieno[3,2-d]pyrimidinecarboxylic Acid; Thieno[3,2-d]pyrimidine-6-carboxylic acid, 4-chloro-; 4-Chlorothieno[3,2-d]pyrimidine-6-carboxylate; CAS 875515-76-7
EINECS	Contact for details

Quality Control

Our 4-Chlorothieno[3,2-D]Pyrimidine-6-Carboxylic Acid is manufactured under strict quality management systems. Every batch undergoes comprehensive analytical testing, including HPLC for purity, NMR and IR for structural confirmation, and residual solvent analysis. A Certificate of Analysis (COA) detailing all specifications and test results is provided with each shipment to ensure traceability and compliance with your research or production requirements.

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 away from strong acids and incompatible organic solvents. For long-term storage, consider storing under an inert atmosphere to maintain optimal purity.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms to structure
Identification (HPLC)	Conforms to reference standard
Purity (HPLC)	≥ 97.0%
Water Content (KF)	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 20 ppm

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