Description

4-Chlorothieno[2,3-D]Pyrimidine-6-Carboxylic Acid is a high-value heterocyclic building block and key synthetic intermediate. Its molecular structure, featuring fused thiophene and pyrimidine rings with a carboxylic acid and chlorine substituent, makes it a versatile scaffold for constructing complex molecules. This compound is primarily sought after by research chemists and process development scientists in the pharmaceutical and agrochemical industries for the synthesis of novel active ingredients.

Application

• Pharmaceutical Intermediate: A crucial precursor in the synthesis of kinase inhibitors, antiviral agents, and other small-molecule drug candidates targeting various therapeutic areas.
• Agrochemical Research: Used in the development of new herbicides, fungicides, and insecticides, leveraging its heterocyclic core for bioactivity.
• Material Science: Serves as a building block for organic electronic materials, such as semiconductors and light-emitting compounds, due to its conjugated system.
• Chemical Synthesis: Acts as a versatile scaffold for further functionalization via reactions at the carboxylic acid or chlorine sites, enabling library synthesis for drug discovery.
• Academic & Contract Research: Employed in universities and CROs (Contract Research Organizations) for methodological studies and the exploration of new chemical spaces.

Basic Information

Product Name	4-Chlorothieno[2,3-D]Pyrimidine-6-Carboxylic Acid
CAS No.	86825-96-9
Molecular Formula	C7H3ClN2O2S
Molecular Weight	214.63 g/mol
Synonyms	4-Chlorothieno[2,3-d]pyrimidine-6-carboxylic acid; 6-Carboxy-4-chlorothieno[2,3-d]pyrimidine; 4-Chloro-6-thieno[2,3-d]pyrimidinecarboxylic Acid; Thieno[2,3-d]pyrimidine-6-carboxylic acid, 4-chloro-; 86825-96-9; 4-Chloro-thieno[2,3-d]pyrimidine-6-carboxylic acid
EINECS	Contact for details

Quality Control

Our production of 4-Chlorothieno[2,3-D]Pyrimidine-6-Carboxylic Acid adheres to stringent quality management protocols. Each 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 is provided with every 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 room temperature (15-25°C). The product is light-sensitive and should be handled accordingly. Keep away from strong acids and incompatible materials.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms to structure
Identification (HPLC)	Retention time matches reference
Purity (HPLC)	≥ 97.0%
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.