PRODUCTS

DIBENZOTHIAZYL DISULFIDE

Dibenzothiazyl disulfide (MBTS) is an organic disulfide resulting from the formal oxidative coupling of the thiol groups of two molecules of 1,3-benzothiazole-2-thiol.
Dibenzothiazyl disulfide (MBTS) is used as an accelerator in the rubber industry.
Dibenzothiazyl disulfide (MBTS) is an organic disulfide and a member of benzothiazoles.
Dibenzothiazyl disulfide (MBTS) is functionally related to a 1,3-benzothiazole-2-thiol.

CAS: 120-78-5
European Community (EC) Number: 204-424-9

IUPAC Name: 2-(1,3-benzothiazol-2-yldisulfanyl)-1,3-benzothiazole

Molecular Formula: C14H8N2S4
Molecular Weight: 332.5 g/mol

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Dibenzothiazyl disulfide (MBTS) is a cream to light yellow powder.

Dibenzothiazyl disulfide (MBTS) is an accelerator used in the processing process for natural and synthetic rubber and plastic regeneration.
Dibenzothiazyl disulfide (MBTS) is also a known allergen and dermatological sensitizer.
Sensitivity to Dibenzothiazyl disulfide (MBTS) may be identified with a clinical patch test.

Dibenzothiazyl disulfide (MBTS) is an accelerator for natural rubber, synthetic rubber and plastic regeneration.
Dibenzothiazyl disulfide (MBTS)'s usage includes tires, hoses, rubber mats, tarpaulins, unveiled silk goods, wires, cables, and other ‘non-food’ use of rubber products.
Further research may identify additional product or industrial usages of Benzothiazyl disulfide (MBTS).

Dibenzothiazyl disulfide (also known as MBTS) is a yellow-colored organic compound with the chemical formula C₁₄H₈N₂S₄.
Dibenzothiazyl disulfide (MBTS) is a vulcanization accelerator widely used in the rubber industry.
Dibenzothiazyl disulfide (MBTS) was first synthesized in the early 20th century and has become one of the most important additives for improving the processing and mechanical properties of vulcanized rubber.

Dibenzothiazyl disulfide (MBTS) is used as a universal accelerator for natural rubber, synthetic rubber and reclaimed rubber.
Dibenzothiazyl disulfide (MBTS) is mainly used in the manufacture of tires, inner tube, adhesive tape, rubber shoes and general industrial products.
High purity Dibenzothiazyl disulfide (MBTS) (pharmaceutical grade) is an important pharmaceutical intermediate for the manufacture of cephalosporins.

Characteristics
PSA： 132.86000
XLogP3： 5.6
Appearance： yellow amorphous powder
Density： 1.50 g/cm3
Melting Point： 180 °C
Boiling Point： 532.5ºC at 760 mmHg
Flash Point： 271ºC
Refractive Index： 1.752
Water Solubility：
H2O: <0.01 g/100 mL at 21 ºC
Storage Conditions： Store in a cool, dry, well-ventilated area away from incompatible substances.
Keep containers tightly closed.
Vapor Pressure： 0mmHg at 25°C
Odor： ODORLESS
Air and Water Reactions： Insoluble in water.
Reactive Group： Amines, Phosphines, and Pyridines
Reactivity Profile： 2,2'-DITHIOBISBENZOTHIAZOLE is incompatible with strong oxidizers. (NTP, 1992)

Dibenzothiazyl disulfide (MBTS) is a cream to light yellow powder.
Dibenzothiazyl disulfide (MBTS) is an organic disulfide resulting from the formal oxidative coupling of the thiol groups of two molecules of 1,3-benzothiazole-2-thiol.
Dibenzothiazyl disulfide (MBTS) is used as an accelerator in the rubber industry.
Dibenzothiazyl disulfide (MBTS) has a role as an allergen.
Dibenzothiazyl disulfide (MBTS) is an organic disulfide and a member of benzothiazoles.
Dibenzothiazyl disulfide (MBTS) derives from a 1,3-benzothiazole-2-thiol.
Dibenzothiazyl disulfide (MBTS) is an accelerator used in the processing process for natural and synthetic rubber and plastic regeneration.
Dibenzothiazyl disulfide (MBTS) is also a known allergen and dermatological sensitizer.
Sensitivity to Dibenzothiazyl disulfide (MBTS) may be identified with a clinical patch test.
Dibenzothiazyl disulfide (MBTS) is a Standardized Chemical Allergen.
The physiologic effect of Dibenzothiazyl disulfide (MBTS) is by means of increased histamine release, and cell-mediated immunity.

Dibenzothiazyl disulfide (MBTS) is used as rubber accelerator, polychloroprene plasticizer/retarder, and neoprene retarder;
Dibenzothiazyl disulfide (MBTS) is also used for general mechanicals and white stocks;
Dibenzothiazyl disulfide (MBTS) is used as cure modifier for neoprene type W and as oxidation cure activator in butyl;
Dibenzothiazyl disulfide (MBTS) is used for extruded and molded products, tires, tubes, wire, cable, and sponge;
Workers may be exposed in metals, home, health, laboratory, and building industries.

Uses
Dibenzothiazyl disulfide (MBTS) is a universal accelerator for natural rubber, synthetic rubber, and reclaimed rubber.
Dibenzothiazyl disulfide (MBTS) is easy to disperse and does not pollute in the rubber compound.
Vulcanized rubber has excellent aging resistance, but items that come into contact with vulcanized rubber tend to have a bitter taste, so it is not suitable for rubber products that come into contact with food.
Dibenzothiazyl disulfide (MBTS) can be used to manufacture tires, hoses, tapes, tapes, general industrial rubber products, etc.
Dibenzothiazyl disulfide (MBTS) is usually combined with thiurams, dithiocarbamates, silica gel, guanidine accelerators to increase activity.
Dibenzothiazyl disulfide (MBTS) needs to be mixed with zinc oxide and stearic acid.
The usual dosage is 1-2 servings.

Applications:

- Dibenzothiazyl disulfide (MBTS) is excellent rubber accelerator, which is widely used in rubber industry.
Given flat, moderately fast cures in NR and SR.
Dibenzothiazyl disulfide (MBTS) is also used in a wide range of general purpose rubber.
- At the same time Dibenzothiazyl disulfide (MBTS) is a highly reactive drug intermediate, which can be used to synthesize cephalosporin antibiotic precursor benzothiazole.
- Non-staining and non-discolouring in “white” socks.
- Dibenzothiazyl disulfide (MBTS) can be used as a plasticizer and retarder in polychloroethylene rubber.
- Secondary acceleration is usually required for synthetic polymers.
- Better scorch safety than MBT.

Dibenzothiazyl disulfide (MBTS) is general accelerator for natural and synthetic rubber and reclaimed one, often used with other accelerators.
Dibenzothiazyl disulfide (MBTS) is mainly used for tyres, rubber belts, rubber shoes and so on.

Dibenzothiazyl disulfide (MBTS) has the potential to combat HPV, acting as a zinc-ejecting inhibitor.
Dibenzothiazyl disulfide (MBTS) also can act as radical polymerization photo-initiators or co-initiators.

Molecular Structure Analysis
The structure of Dibenzothiazyl disulfide (MBTS) features two benzothiazole rings connected by a central disulfide bond (S-S).
The benzothiazole rings are aromatic heterocycles containing a nitrogen and a sulfur atom.
The key features of the structure include:

Aromatic character: The presence of alternating double and single bonds in the benzothiazole rings grants aromatic stability, making the molecule resistant to certain reactions.
Sulfur atoms: The two sulfur atoms play crucial roles.
The central disulfide bond (S-S) contributes to vulcanization by forming crosslinks between rubber chains.
Additionally, the sulfur atoms in the benzothiazole rings can interact with other components in rubber formulations.

Computed Properties
Molecular Weight:332.5
XLogP3:5.6
Hydrogen Bond Acceptor Count:6
Rotatable Bond Count:3
Exact Mass:331.95703296
Monoisotopic Mass:331.95703296
Topological Polar Surface Area:133
Heavy Atom Count:20
Complexity:311
Covalently-Bonded Unit Count:1
Compound Is Canonicalized:Yes

Chemical Reactions Analysis
Synthesis
Dibenzothiazyl disulfide (MBTS) is typically synthesized by the reaction of 2-mercaptobenzothiazole with an oxidizing agent like sulfur dichloride (SCl₂).

Balanced Chemical Equation:
C₆H₅NS₂ + SCl₂ → C₁₄H₈N₂S₄ + 2 HCl

Vulcanization
Dibenzothiazyl disulfide (MBTS) plays a vital role in the vulcanization process of rubber.
During vulcanization, Dibenzothiazyl disulfide (MBTS) decomposes at high temperatures, generating sulfur radicals.
These radicals interact with the double bonds in rubber chains, forming crosslinks that strengthen the rubber and improve its elasticity and durability.

Decomposition
Dibenzothiazyl disulfide (MBTS) decomposes at elevated temperatures (>150°C) to release various products, including benzothiazole derivatives, sulfur, and hydrogen sulfide.
The exact decomposition pathway can be complex and depends on processing conditions.

Other Relevant Reactions
Dibenzothiazyl disulfide (MBTS) can undergo various reactions depending on the processing conditions and presence of other additives.
These reactions can involve interactions with other rubber components, accelerators, or activators, influencing the vulcanization process and final rubber properties.
However, detailed exploration of these reactions goes beyond the scope of a general analysis.

Scientific Research Applications
Synthesis and Characterization:
Dibenzothiazyl disulfide (MBTS) (also known as dibenzothiazyl disulfide) is a well-established organic compound with the chemical formula C₁₄H₈N₂S₄.
Dibenzothiazyl disulfide (MBTS)'s synthesis involves various methods, including the oxidative coupling of 2-mercaptobenzothiazole with various oxidizing agents like hydrogen peroxide or ferric chloride.
Researchers have also explored alternative synthetic routes using microwave irradiation or ionic liquids, aiming to improve efficiency and environmental sustainability.
Characterization of Dibenzothiazyl disulfide (MBTS) typically involves spectroscopic techniques like infrared (IR) spectroscopy, nuclear magnetic resonance (NMR) spectroscopy, and mass spectrometry to confirm its structure and purity.

Applications in Material Science:
The primary application of Dibenzothiazyl disulfide (MBTS) lies in the field of material science, particularly as an accelerator in the rubber industry.
Dibenzothiazyl disulfide (MBTS) promotes the vulcanization process, which improves the strength, elasticity, and thermal stability of rubber products.
Research efforts have focused on understanding the underlying mechanisms of its action and exploring its potential for developing new rubber formulations with enhanced properties.

Biological Activities:
While not extensively explored, some research suggests potential biological activities of Dibenzothiazyl disulfide (MBTS).
Studies have reported its antibacterial and antifungal properties against various microorganisms.
However, further investigation is needed to understand the specific mechanisms of action and potential applications in this area.

Properties: Dibenzothiazyl disulfide (MBTS) is an important derivative of 2-Mercaptobenzothiazole(CAS 149-30-4).
Melting point of high purity Benzothiazyl disulfide (MBTS) is 186℃ , Dibenzothiazyl disulfide (MBTS) used as rubber accelerator has a melting point about 170 ~ 172℃.
Gray-white or light yellow powder (granule) with a little bitter, no poison.
The density is 1.45-1.54.
Soluble in chloroform, partly soluble in benzene, ethanol, CCl4, insoluble in gasoline, water and ethyl acetate.

Storage: Good storage stability.
Dibenzothiazyl disulfide (MBTS) should be stored in the dry and cooling place with good ventilation, avoiding exposure of the packaged product to direct sunlight.
The validity is 2 years.