Description

2,1,3-Benzothiadiazole-5-Carboxylic Acid is a high-purity organic intermediate featuring a benzothiadiazole core with a carboxylic acid functional group. This compound is valued for its role as a critical building block in the synthesis of advanced materials and functional molecules. It is primarily sought after by research institutions and manufacturers in the pharmaceutical, agrochemical, and organic electronics sectors for developing novel compounds with specific optical or electronic properties.

Application

• Pharmaceutical Intermediate: Serves as a key precursor in the synthesis of active pharmaceutical ingredients (APIs), particularly those with benzothiadiazole-based structures for therapeutic applications.
• Agrochemical Synthesis: Used in the research and development of new herbicides, fungicides, and other crop protection agents.
• Organic Electronic Materials: Acts as a building block for electron-accepting units in the design of organic semiconductors, dyes, and pigments for OLEDs, solar cells, and sensors.
• Ligand and Catalyst Development: Employed in coordination chemistry to create novel ligands for metal complexes used in catalysis.
• Fluorescent Probe Synthesis: Utilized to construct molecular probes and markers for bioimaging and analytical chemistry due to the benzothiadiazole fluorophore.
• Polymer and Material Science: Incorporated as a monomer or functional additive to impart specific properties to advanced polymeric materials.

Basic Information

Product Name	2,1,3-Benzothiadiazole-5-Carboxylic Acid
CAS No.	16405-98-4
Molecular Formula	C7H4N2O2S
Molecular Weight	180.18 g/mol
Synonyms	Benzothiadiazole-5-carboxylic acid; 2,1,3-Benzothiadiazole-5-carboxylic acid; 5-Carboxy-2,1,3-benzothiadiazole; 2,1,3-Benzothiadiazolecarboxylic acid; BTZ-COOH; Benzo[c][1,2,5]thiadiazole-5-carboxylic acid; 1,2,5-Thiadiazolo[3,4-f]benzoic acid
EINECS	Contact for details

Quality Control

Our 2,1,3-Benzothiadiazole-5-Carboxylic Acid is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing to ensure identity, purity, and consistency. We provide comprehensive Certificates of Analysis (COA) with key parameters including assay, related substances, and residual solvents. Our quality commitment ensures the material is suitable for demanding research and scale-up applications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (typically 15-25°C). Keep away from strong oxidizing agents and strong bases.

Specification

Item	Specification
Appearance	Off-white to light yellow crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Related Substances (HPLC)	Total impurities ≤ 2.0%

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