Description

Benzofurazan-5-Carbonyl Chloride is a high-purity, reactive organic intermediate essential for advanced chemical synthesis. Its core value lies in its role as a versatile building block for constructing complex heterocyclic and functionalized molecular architectures. This compound is critically needed by research chemists and process development scientists in the pharmaceutical, agrochemical, and materials science industries for creating novel active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of novel drug candidates, particularly those containing benzofurazan or furazan scaffolds with potential biological activity.
• Agrochemical Synthesis: Used in the research and development of new herbicides, fungicides, and insecticides, where the benzofurazan moiety can impart specific modes of action.
• Functional Material Precursor: Serves as a building block for creating advanced organic materials, such as dyes, pigments, and organic electronic components.
• Chemical Biology & Proteomics: Employed in the design and synthesis of chemical probes, tags, and linkers for labeling and studying biomolecules.
• Cross-Coupling Reactions: Acts as an electrophilic reagent in various coupling reactions to introduce the carbonyl chloride functional group into target molecules.
• Heterocyclic Chemistry Research: A fundamental reagent for academic and industrial research focused on developing new methodologies for constructing nitrogen- and oxygen-containing heterocycles.

Basic Information

Product Name	Benzofurazan-5-Carbonyl Chloride
CAS No.	126147-86-2
Molecular Formula	C7H3ClN2O2
Molecular Weight	182.56 g/mol
Synonyms	5-Benzofurazancarbonyl Chloride; 2,1,3-Benzoxadiazole-5-carbonyl Chloride; Benzofuroxan-5-Carbonyl Chloride; 5-Carboxybenzofurazan Chloride; 1,2,5-Oxadiazolo[3,4-f]benzene-5-carbonyl Chloride; 2,1,3-Benzoxadiazole-5-carboxylic Acid Chloride; 5-(Chlorocarbonyl)benzofurazan
EINECS	Contact for details

Quality Control

Our Benzofurazan-5-Carbonyl Chloride is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC, NMR, and IR spectroscopy, to ensure high purity and consistency. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with every shipment to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated place at a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed under an inert atmosphere (e.g., nitrogen or argon) after opening to prevent decomposition. Keep away from heat, sparks, open flames, and incompatible materials such as strong bases, alcohols, and amines.

Specification

Item	Specification
Appearance	Off-white to light yellow crystalline powder or solid
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Melting Point	Contact for details
Water Content (KF)	≤ 0.5%

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