Description

2-Mercapto-5-methylbenzimidazole is a versatile sulfur and nitrogen-containing heterocyclic compound that serves as a critical intermediate in advanced organic synthesis. Its value lies in its dual functionality, acting as both a nucleophile and a ligand, which makes it indispensable for creating high-performance materials and active pharmaceutical ingredients. This product is essential for manufacturers in the pharmaceutical, agrochemical, and specialty polymer industries seeking to develop corrosion inhibitors, rubber vulcanization accelerators, and complex molecular scaffolds.

Application

• Pharmaceutical Intermediate: Key building block in the synthesis of various benzimidazole-derived drugs, including anthelmintics and proton pump inhibitors.
• Rubber Vulcanization Accelerator: Acts as a primary or secondary accelerator in the production of tires and industrial rubber goods, enhancing cross-linking efficiency and heat resistance.
• Corrosion Inhibitor Precursor: Used to formulate high-efficiency corrosion inhibitors for industrial cooling water systems and metal surface treatment.
• Agrochemical Synthesis: Intermediate in the manufacture of certain fungicides and pesticides that leverage the benzimidazole core for biological activity.
• Complexing Agent / Ligand: Utilized in coordination chemistry and catalysis due to its ability to bind with various metal ions.
• Polymer Additive: Incorporated into specialty polymers to improve thermal stability and antioxidant properties.
• Research & Development: Serves as a standard reagent in organic chemistry research for developing novel heterocyclic compounds.

Basic Information

Product Name	2-Mercapto-5-methylbenzimidazole
CAS No.	27231-63-3
Molecular Formula	C8H8N2S
Molecular Weight	164.23 g/mol
Synonyms	5-Methyl-2-benzimidazolethiol; 5-Methyl-2-mercaptobenzimidazole; 2-Benzimidazolethiol, 5-methyl-; 2-Mercapto-5-methyl-1H-benzimidazole; 2-Thiol-5-methylbenzimidazole; NSC 403697; Antioxidant MB; Vulcanization Accelerator MMB
EINECS	248-350-6

Quality Control

Every batch of 2-Mercapto-5-methylbenzimidazole is manufactured and tested under a strict quality management system. We ensure compliance with relevant industry standards and provide comprehensive batch documentation. Certificates of Analysis (COA) detailing purity, identity, and impurity profiles are available for all shipments to guarantee traceability and product consistency for your critical applications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). This material is easily oxidized and should be kept under an inert atmosphere for long-term storage to maintain stability and purity. Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	White to light yellow crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	290 - 295 °C
Loss on Drying	≤ 0.5%
Residue on Ignition (Sulfated Ash)	≤ 0.1%
Heavy Metals (as Pb)	≤ 20 ppm

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