Dibenzothiazole Disulfide

Basic Info:

  • Chemical Synonym(s): Benzothiazole, 2,2‘-dithiobis-; 2-(1,3-benzothiazol-2-yldisulfanyl)-1,3-benzothiazole; 2,2-Dithiobisbenzothiazole; 2,2'-Dithiobis(benzothiazole); Perkacit MBTS; Expand
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  • CAS Number: 120-78-5
  • Chemical Formula:


  • MSDS: Download


Boiling Point
532.5ºC at 760 mmHg
Melting Point
Flash Point
Refractive Index
Vapor Pressure
0mmHg at 25°C
Cream to pale-yellow powder
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China has a large number of suppliers of rubber additives, who tend to have strong product strengths and price advantages within a given class. If you are sourcing from China for the first time, you may have difficulty finding the best supplier in a short period of time. Even if you already have a cooperative plant, their prices will fluctuate at any time later, causing you a loss. Our company is collecting information about the plant every day, the supply of raw materials, the latest technological development, and so on, and we know all the manufacturers of rubber additives in China. During our years of collaboration, we know every pain point of our customers, giving you the best solution. At the same time, we take all the risks for you.

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Dibenzothiazole disulfide, also called DBT, is a dibenzodioxin that is a heterocyclic compound and dioxin. It is a pale yellow crystalline solid and is the thioether of dibenzo-1,3-oxathiolane.

It is a toxic and flammable compound that may cause cancer and irritation of the eyes, skin, and respiratory tract. It has an odor of roasted coffee and garlic.

It can be formed from the reaction of sodium sulfide and carbon disulfide. It is produced by the chemical reaction of benzene and thiobenzophenone. It is also produced by reacting thioacetamide with formaldehyde sulfur dioxide.

The product also contains two equivalents of sulfide per disulfide group.


Dibenzothiazole disulfide is used in polyurethanes to improve resistance to heat, sunlight, and ozone.

Due to the aromatic disulfide functional groups, it has excellent thermal stability. It is used as a source of sulfur, for vulcanization of rubber, as a mordant, and as a photographic fixer.

It is a starting material in the preparation of dyes and rubber accelerators. It is an intermediate in the production of the drug pentothal, a potent vesicant used topically in the treatment of warts and corns.

It is an ingredient in shaving creams as a foam stabilizer. It is used as an intermediate in producing dyes, optical brighteners, flame retardants, pharmaceuticals, perfumes, semiconductors.


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