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2-Mercaptobenzimidazole

  • 2-Mercaptobenzimidazole
  • 2-Mercaptobenzimidazole
  • 2-Mercaptobenzimidazole
  • 2-Mercaptobenzimidazole

2-Mercaptobenzimidazole

CAS No.: 583-39-1
Molecular Formula: C7H6N2S
Molecular Weight: 150.2
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product description
2-mercaptobenzimidazole is composed of a benzimidazole ring (nitrogen-containing heterocyclic) and a thiol group (-SH), with the thiol group attached to position 2 of the benzimidazole ring. White to light yellow crystalline powder. The pure substance is close to white. When exposed to air, it may be slightly yellow due to oxidation. Slightly soluble in water (solubility approximately 0.1g /L at 25℃), readily soluble in organic solvents such as ethanol, acetone, and dimethyl sulfoxide (DMSO);


Chemical Properties
PropertyValue

Melting Point

300-304 °C (lit.)

Boiling Point

270.6±23.0 °C(Predicted)

Density

1.42

Vapor Pressure

0-0.001Pa at 25℃

Refractive Index

1.5500 (estimate)

Fp

>250°C

Storage Temp.

2-8°C

Solubility

0.3g/l

Pka

10.24±0.10(Predicted)

Form

Powder

Color

White to beige

Water Solubility

<0.1 g/100 mL at 23.5 ºC

Merck

14,1082

BRN

119867

Stability:

Stable. Incompatible with strong oxidizing agents.

LogP

0.88-1.66 at 20-25℃

CAS DataBase Reference

583-39-1(CAS DataBase Reference)

NIST Chemistry Reference

2-Mercaptobenzimidazole(583-39-1)

EPA Substance Registry System

2-Mercaptobenzimidazole (583-39-1)


Safety Information

PropertyValue
Hazard symbolXn
Hazard class codes20/21/22-36/37/38-22
Safety descriptions26-36-24/25
UN dangerous goods numberUN 2811 6.1/PG 3
WGK Germany2
RTECS numberDE1050000
Autoignition temperature480 °C
TSCATSCA listed
Hazard class6.1
Packing groupIII
HS code29339910
Storage class6.1C - Combustible, acute toxicity Category 3
Toxic compounds or compounds causing chronic effects
Hazard class (category)Acute toxicity, Category 3, Oral
Hazardous to the aquatic environment — long-term hazard, Category 3
Skin sensitization, Category 1A
Specific target organ toxicity — repeated exposure, Category 2
ToxicityLD50 orally in Rabbit: 300 mg/kg


Product Usage

2-Mercaptobenzimidazole, with CAS No. 583-39-1 and chemical formula C₇H₆N₂S, appears as white to pale yellow crystalline powder, odorless, slightly soluble in water, and easily soluble in organic solvents such as ethanol and acetone. It has good antioxidant, anti-aging and metal protection properties. Its core application is in the rubber industry, serving as a rubber vulcanization accelerator and anti-aging agent, which can effectively increase the vulcanization speed of rubber, enhance the tensile strength and wear resistance of rubber products, and extend the service life of rubber. It is widely used in the production of natural rubber and synthetic rubber. At the same time, it can also be used as a metal corrosion inhibitor, which can form a protective film on the metal surface to prevent metal oxidation and rust; in the medical field, it can be used as an intermediate in organic synthesis for drug synthesis; in the dye industry, it is used to synthesize various functional dyes, and is a versatile functional chemical raw material in multiple fields.

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Inventory 2-3 working days New manufacturing 7-10 working days

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2. By Sea, usual and economy.
3. By Train, suit for middle Asia countries.
4. By Express, suit for small package.
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Q1: Are Your Products Compliant With International Standards?

A1: Yes, our company holds a number of internationally recognized core certifications. All production and operation activities strictly follow international environmental, safety and quality standards, and each batch of products is accompanied by a compliance test report to meet the chemical industry requirements in different regions around the world.


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A2: Yes, we have a professional R&D team and refined production capacity. We can customize chemical products of different specifications and performances according to customers' specific needs, and provide full-process technical support to meet the personalized application needs of downstream industries.


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A4: You can contact our customer service or sales team to specify the specific model and specification of the required samples. We will provide free samples according to the actual situation, and the sample express fee can be negotiated.

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