Description

1H-Benzotriazole-6-Sulfonyl Chloride is a versatile and highly reactive sulfonyl chloride derivative used as a key building block in organic synthesis. Its primary value lies in its ability to act as a sulfonylation reagent, facilitating the introduction of the benzotriazole-sulfonyl moiety into target molecules. This compound is essential for researchers and manufacturers in the pharmaceutical and agrochemical industries, particularly for the development of active ingredients and fine chemicals.

Application

• Key intermediate in the synthesis of pharmaceutical active ingredients, especially protease inhibitors and other biologically active molecules.
• Building block for the development of novel agrochemicals, including herbicides and fungicides.
• Reagent for the preparation of sulfonamide derivatives in medicinal chemistry research.
• Used in the synthesis of dyes, pigments, and other specialty chemicals.
• Valuable tool in chemical biology for protein labeling and bioconjugation strategies.
• Intermediate in material science for creating functional polymers and advanced materials.

Basic Information

Product Name	1H-Benzotriazole-6-Sulfonyl Chloride
CAS No.	70938-45-3
Molecular Formula	C6H4ClN3O2S
Molecular Weight	217.63 g/mol
Synonyms	1H-Benzotriazole-6-sulfonyl chloride; 6-(Chlorosulfonyl)-1H-benzotriazole; Benzotriazole-6-sulfonyl chloride; 1H-1,2,3-Benzotriazole-6-sulfonyl chloride; BTSC; 6-Chlorosulfonyl-1H-benzotriazole; 70938-45-3; 1H-Benzotriazol-6-ylsulfonyl chloride
EINECS	Contact for details

Quality Control

Our 1H-Benzotriazole-6-Sulfonyl Chloride is manufactured under strict quality control protocols to ensure batch-to-batch consistency and high purity. Each lot is analyzed to confirm identity, potency, and impurity profiles. Certificates of Analysis (COA) documenting comprehensive testing results are available for all shipments. We adhere to cGMP principles where applicable to support our customers in regulated industries.

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). This material is hygroscopic (moisture-sensitive) and light-sensitive; containers must be kept tightly sealed to exclude moisture and stored away from direct light exposure.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Water Content (KF)	≤ 0.5%
Related Substances (HPLC)	Total impurities ≤ 2.0%
Melting Point	Contact for details

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