Description

2-Mercaptobenzimidazole is a versatile organic sulfur compound primarily valued for its role as a highly effective antioxidant and metal deactivator. Its chemical structure makes it a critical additive for stabilizing polymers, rubbers, and lubricants against thermal and oxidative degradation. This product is essential for manufacturers in the rubber, plastics, and specialty chemical industries seeking to enhance the longevity and performance of their materials.

Application

• Rubber Antioxidant: A key non-staining antioxidant for natural and synthetic rubbers, protecting against heat, oxygen, and flex-cracking.
• Polymer Stabilizer: Used as a stabilizer in polyamides (nylons) and other engineering plastics to prevent thermal degradation during processing and use.
• Copper Corrosion Inhibitor: Functions as a highly effective metal deactivator and corrosion inhibitor in industrial lubricants, greases, and fuels.
• Photographic Chemicals: Employed in certain photographic developers and as an additive in silver halide emulsions.
• Chemical Intermediate: Serves as a building block in the synthesis of more complex benzimidazole derivatives for pharmaceutical and agrochemical research.
• Vulcanization Accelerator: Acts as a secondary accelerator in some rubber vulcanization systems.

Basic Information

Product Name	2-Mercaptobenzimidazole
CAS No.	583-39-1
Molecular Formula	C7H6N2S
Molecular Weight	150.20 g/mol
Synonyms	2-Benzimidazolethiol; 2-Benzimidazolyl mercaptan; 2-MBI; MBZ; Benzimidazole-2-thiol; 2-Thiolbenzimidazole; 2-Sulfanyl-1H-benzimidazole; Antioxidant MB; Vulkanox MB
EINECS	209-502-6

Quality Control

Our 2-Mercaptobenzimidazole is produced under a strict quality management system to ensure batch-to-batch consistency and high purity. We provide comprehensive quality assurance, with product specifications meeting the requirements of major industrial applications. A Certificate of Analysis (COA) detailing purity, physical properties, and test results is supplied with every shipment to guarantee compliance with your technical specifications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). This material is easily oxidized; for long-term storage, consider keeping under an inert atmosphere such as nitrogen. Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	White to pale yellow crystalline powder
Identification (IR)	Conforms
Assay (HPLC)	≥ 98.0%
Melting Point	≥ 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.