Description

1-Methyl-1H-1,2,3-Benzotriazole-5-Carbonyl Chloride is a high-purity, reactive chemical intermediate characterized by its acid chloride functionality. This compound is essential for introducing the 1-methylbenzotriazole moiety into more complex molecular architectures, enabling the synthesis of advanced materials and active pharmaceutical ingredients. It is a critical building block for researchers and manufacturers in the pharmaceutical, agrochemical, and specialty chemical industries seeking to develop novel compounds with specific performance characteristics.

Application

• Pharmaceutical Intermediate: Key building block for the synthesis of active pharmaceutical ingredients (APIs), particularly those containing benzotriazole scaffolds.
• Agrochemical Synthesis: Used in the production of advanced herbicides, fungicides, and pesticides requiring specific heterocyclic structures.
• Polymer Chemistry: Serves as a monomer or modifying agent for creating specialty polymers with enhanced thermal stability or specific ligating properties.
• Material Science: Employed in the development of corrosion inhibitors, photographic chemicals, and advanced electronic materials.
• Organic Synthesis & Research: A versatile reagent for peptide coupling and amide bond formation reactions in laboratory-scale and process chemistry.
• Ligand Precursor: Used to synthesize complex ligands for catalysis and metal-organic frameworks (MOFs).

Basic Information

Product Name	1-Methyl-1H-1,2,3-Benzotriazole-5-Carbonyl Chloride
CAS No.	423768-38-1
Molecular Formula	C8H6ClN3O
Molecular Weight	195.61 g/mol
Synonyms	1-Methyl-1H-benzotriazole-5-carbonyl chloride; 5-(Chlorocarbonyl)-1-methyl-1H-benzotriazole; 1-Methyl-1H-1,2,3-benzotriazole-5-carboxylic acid chloride; Tolnidamine intermediate; Benzotriazole-5-carbonyl chloride, 1-methyl-; 423768-38-1
EINECS	Contact for details

Quality Control

Our 1-Methyl-1H-1,2,3-Benzotriazole-5-Carbonyl Chloride is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation by IR and NMR spectroscopy, to ensure it meets exacting standards for research and industrial use. Certificates of Analysis (COA) documenting all critical parameters are available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated place at controlled room temperature (15-25°C). This material is hygroscopic (moisture-sensitive) and should be handled under an inert atmosphere (e.g., nitrogen or argon) to prevent decomposition. Keep away from strong acids, bases, and oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Identification (NMR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
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.