Description

1H-Benzimidazole-2-Sulfenylchloride(9Ci) is a specialized organosulfur chlorinating reagent and a key synthetic intermediate in heterocyclic chemistry. Its unique sulfenyl chloride functional group makes it a valuable building block for constructing complex molecular architectures, particularly in the development of pharmaceuticals and advanced materials. This high-purity compound is essential for researchers and manufacturers in the pharmaceutical, agrochemical, and specialty chemical industries seeking to introduce sulfur-containing motifs or create novel benzimidazole derivatives.

Application

• Pharmaceutical Intermediate: A critical precursor in the synthesis of active pharmaceutical ingredients (APIs), particularly for drugs containing benzimidazole or thioether scaffolds.
• Agrochemical Synthesis: Used in the research and production of novel fungicides, herbicides, and plant growth regulators that leverage its reactive sulfenyl chloride group.
• Material Science Research: Serves as a monomer or cross-linking agent in the development of advanced polymers and functional materials with specific electronic or thermal properties.
• Chemical Biology & Proteomics: Employed as a selective modifying agent for cysteine residues in peptides and proteins for labeling or activity studies.
• Ligand & Catalyst Development: Acts as a key synthon for creating novel sulfur-containing ligands used in transition metal catalysis and coordination chemistry.
• Custom Synthesis & Contract Manufacturing: A vital reagent for fine chemical and custom synthesis houses producing bespoke compounds for client R&D programs.

Basic Information

Product Name	1H-Benzimidazole-2-Sulfenylchloride(9Ci)
CAS No.	71196-90-2
Molecular Formula	C7H5ClN2S
Molecular Weight	184.64 g/mol
Synonyms	2-Chlorosulfenyl-1H-benzimidazole; 1H-Benzimidazole-2-sulfenyl chloride; 2-(Chlorothio)-1H-benzimidazole; Benzimidazole-2-sulfenyl chloride; 2-Chlorosulfanyl-1H-benzimidazole; 2-Chlorosulfanylbenzimidazole; 2-(Chlorosulfanyl)-1H-benzimidazole; NSC 403811
EINECS	Contact for details

Quality Control

Our 1H-Benzimidazole-2-Sulfenylchloride(9Ci) is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation via FT-IR and NMR spectroscopy, to ensure it meets the high standards required for research and industrial synthesis. A comprehensive Certificate of Analysis (COA) detailing purity, assay, and impurity profiles is provided with every shipment and is 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 compound is hygroscopic (moisture-sensitive) and light-sensitive; therefore, containers must be kept tightly sealed under an inert atmosphere (e.g., nitrogen or argon) after opening to prevent degradation. Keep away from heat, sparks, open flames, and incompatible materials such as strong bases and oxidizing agents.

Specification

Item	Specification
Appearance	Off-white to light yellow crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Melting Point	Contact for details
Loss on Drying	≤ 1.0%
Heavy Metals	≤ 20 ppm
Residue on Ignition	≤ 0.1%

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