Description

2-Methyl-2H-Benzotriazole-4-Sulfonyl Chloride is a specialized sulfonyl chloride derivative of a benzotriazole heterocycle, serving as a critical building block in advanced organic synthesis. This compound matters for its high reactivity as a sulfonylation reagent, enabling the efficient introduction of the sulfonamide functional group. It is primarily needed by R&D chemists and process development scientists in the pharmaceutical and agrochemical industries for constructing novel active ingredients and intermediates.

Application

• Pharmaceutical Intermediate: Key building block for the synthesis of novel drug candidates, particularly those containing sulfonamide pharmacophores.
• Agrochemical Synthesis: Used in the production of advanced herbicides, fungicides, and insecticides requiring specific sulfonamide linkages.
• Functional Material Precursor: Serves as a monomer or cross-linking agent in the development of specialty polymers and advanced materials.
• Chemical Biology Probe Development: Utilized for labeling proteins or modifying biomolecules due to its reactive sulfonyl chloride group.
• Organic Synthesis Reagent: A versatile reagent for introducing the 2-methylbenzotriazole-4-sulfonyl moiety into complex molecular architectures.
• Research & Development: Essential for academic and industrial research exploring new chemical entities and reaction pathways.

Basic Information

Product Name	2-Methyl-2H-Benzotriazole-4-Sulfonyl Chloride
CAS No.	1033464-75-3
Molecular Formula	C7H6ClN3O2S
Molecular Weight	231.66 g/mol
Synonyms	2-Methyl-2H-benzotriazole-4-sulfonyl chloride; 2-Methyl-1,2,3-benzotriazole-4-sulfonyl chloride; 4-(Chlorosulfonyl)-2-methyl-2H-benzotriazole; 1-Methyl-1H-benzotriazole-5-sulfonyl chloride (tautomer); MBT-4-SO2Cl; 2-Me-BT-4-SO2Cl; Benzotriazole sulfonyl chloride derivative
EINECS	Contact for details

Quality Control

Our 2-Methyl-2H-Benzotriazole-4-Sulfonyl Chloride is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation by NMR and IR spectroscopy, to ensure it meets exacting standards for research and production. Certificates of Analysis (COA) with full batch traceability are available upon request.

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 strong acids and incompatible materials.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Water Content (KF)	≤ 1.0%
Related Substances (HPLC)	Total impurities ≤ 3.0%

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