2-Mercaptobenzothiazole (CAS No.: 149-30-4, abbreviated as MBT, commonly known as "Accelerator M") is a chemical substance with both industrial practical value and scientific research potential. It appears as a beige or light yellow powder with a faint odor and a slightly bitter taste. Its molecular structure is stable, with a molecular formula of C₇H₅NS₂ and a molecular weight of 167.251. It can be stored for a long time under normal temperature and pressure, and has clear physical and chemical properties as well as safety labels (GHS07 for health hazards, GHS09 for environmental hazards, and the signal word "Warning"). It not only meets the needs of large-scale industrial production but also can be used as a basic material for laboratory analysis and biological metabolism research.
The product has a clear range of key parameters, with a melting point of 177-181℃ (in line with standard literature values), a boiling point of 305.0±25.0℃ (at 760 mmHg), a density of 1.5±0.1 g/cm³, a flash point of 243℃ (decomposition temperature), and an extremely low vapor pressure (only 0.0±0.6 mmHg at 25℃). The small fluctuation of its physicochemical properties facilitates the precise control of process conditions in industrial production and reduces product quality deviations caused by unstable parameters.
Although it is insoluble in water (solubility <0.1 g/100 mL at 19℃) and gasoline, it can be quickly dissolved in organic solvents such as ethanol, ether, acetone, and ethyl acetate. It is also soluble in dilute alkaline solutions (e.g., sodium hydroxide and sodium carbonate solutions) and slightly soluble in benzene and hot water. This solubility characteristic enables it to be compatible with organic solvent-based vulcanization systems in the rubber industry and meet the analysis needs in specific solvent environments in laboratories.
It has clear acute toxicity data (e.g., LD₅₀ = 100 mg/kg for oral administration in rats, LD₅₀ > 7940 mg/kg for dermal administration in rabbits). The health and environmental hazard labels are clear, which is convenient for enterprises to establish targeted protection and emergency plans. Meanwhile, its lower explosive limit of dust (21% V/V) is clear, which can help avoid explosion risks in industrial production in advance.
As a mainstream rubber vulcanization accelerator, this product is widely used in the production of rubber products such as automotive tires, rubber seals, and rubber pipes. It can efficiently accelerate the vulcanization reaction between rubber and sulfur, shorten the vulcanization time, improve vulcanization efficiency, and at the same time enhance the mechanical properties of rubber products (e.g., tensile strength and wear resistance). It is a key additive that balances "efficiency and quality" in the rubber industry, and is especially suitable for the large-scale production of medium and high-end rubber products.
In the field of scientific research, it can be used as an analytical reagent for the detection and separation of specific substances. Relying on its selective effect on some metal ions or organic compounds, it assists in completing chemical analysis experiments and provides technical support for fields such as material testing and environmental monitoring.
Due to its attribute of "endogenous metabolite", this product is also used in the research field related to metabolic diseases. It provides basic substances for exploring metabolic pathways in organisms and analyzing the functions of metabolites, and helps researchers carry out studies in directions such as cellular metabolism and disease mechanisms.
| Item | Specification Parameters | Description |
|---------------------|---------------------------------------------------|------------------------------------------|
| CAS No. | 149-30-4 | Unique chemical substance identifier, in line with international standards |
| Molecular Formula | C₇H₅NS₂ | Clear molecular composition, with purity suitable for industrial/scientific research needs |
| Molecular Weight | 167.251 | Theoretical calculation value, with minimal deviation from actual detection values |
| Melting Point Range | 177-181℃ (lit.) | Literature-verified value, reference standard for process control |
| Density (25℃) | 1.5±0.1 g/cm³ | Stable density at normal temperature, convenient for material measurement |
| Flash Point | 243℃ (dec.) | Flash point at decomposition temperature, guiding storage and heating operations |
| Solubility | Soluble in organic solvents/dilute alkaline solutions; insoluble in water/gasoline | Adaptable to application needs in multiple scenarios |
| Appearance | Beige or light yellow powder, no obvious caking | General appearance standard for industrial-grade products |
This product belongs to Class 9 dangerous goods, with a transportation code of UN 3077 9/PG 3. The packaging must be clearly marked with dangerous goods labels, CAS No., and product name to avoid misjudgment or confusion during transportation.
Sealed packaging containers with good sealing performance (e.g., iron drums or cardboard drums lined with plastic bags) should be used to ensure the packaging is complete without leakage or damage. This prevents dust scattering or moisture absorption and deterioration during transportation. At the same time, the packaging must comply with the anti-impact and anti-extrusion standards for the transportation of industrial chemicals.
Mixed loading and transportation with strong oxidizing agents are strictly prohibited to avoid safety accidents caused by chemical reactions. Transportation vehicles must be equipped with dry powder, carbon dioxide fire extinguishers, and emergency leakage treatment tools (e.g., gas masks, chemical protective clothing), and the exhaust pipes must be equipped with flame arresters. During transportation, exposure to sunlight, rain, and high-temperature environments should be avoided. When stopping halfway, the vehicle should be kept away from ignition sources and heat sources (e.g., gas stations, fire sources).
After the completion of transportation, the vehicle must be thoroughly cleaned to remove residual dust, so as to avoid cross-contamination when transporting other materials later. In case of leakage, the contaminated area should be isolated immediately, and the leakage should be collected and treated in accordance with the emergency plan. It is strictly forbidden to discharge the leakage into groundwater or sewage systems.
2-Mercaptobenzothiazole (CAS No.: 149-30-4, abbreviated as MBT, commonly known as "Accelerator M") is a chemical substance with both industrial practical value and scientific research potential. It appears as a beige or light yellow powder with a faint odor and a slightly bitter taste. Its molecular structure is stable, with a molecular formula of C₇H₅NS₂ and a molecular weight of 167.251. It can be stored for a long time under normal temperature and pressure, and has clear physical and chemical properties as well as safety labels (GHS07 for health hazards, GHS09 for environmental hazards, and the signal word "Warning"). It not only meets the needs of large-scale industrial production but also can be used as a basic material for laboratory analysis and biological metabolism research.
The product has a clear range of key parameters, with a melting point of 177-181℃ (in line with standard literature values), a boiling point of 305.0±25.0℃ (at 760 mmHg), a density of 1.5±0.1 g/cm³, a flash point of 243℃ (decomposition temperature), and an extremely low vapor pressure (only 0.0±0.6 mmHg at 25℃). The small fluctuation of its physicochemical properties facilitates the precise control of process conditions in industrial production and reduces product quality deviations caused by unstable parameters.
Although it is insoluble in water (solubility <0.1 g/100 mL at 19℃) and gasoline, it can be quickly dissolved in organic solvents such as ethanol, ether, acetone, and ethyl acetate. It is also soluble in dilute alkaline solutions (e.g., sodium hydroxide and sodium carbonate solutions) and slightly soluble in benzene and hot water. This solubility characteristic enables it to be compatible with organic solvent-based vulcanization systems in the rubber industry and meet the analysis needs in specific solvent environments in laboratories.
It has clear acute toxicity data (e.g., LD₅₀ = 100 mg/kg for oral administration in rats, LD₅₀ > 7940 mg/kg for dermal administration in rabbits). The health and environmental hazard labels are clear, which is convenient for enterprises to establish targeted protection and emergency plans. Meanwhile, its lower explosive limit of dust (21% V/V) is clear, which can help avoid explosion risks in industrial production in advance.
As a mainstream rubber vulcanization accelerator, this product is widely used in the production of rubber products such as automotive tires, rubber seals, and rubber pipes. It can efficiently accelerate the vulcanization reaction between rubber and sulfur, shorten the vulcanization time, improve vulcanization efficiency, and at the same time enhance the mechanical properties of rubber products (e.g., tensile strength and wear resistance). It is a key additive that balances "efficiency and quality" in the rubber industry, and is especially suitable for the large-scale production of medium and high-end rubber products.
In the field of scientific research, it can be used as an analytical reagent for the detection and separation of specific substances. Relying on its selective effect on some metal ions or organic compounds, it assists in completing chemical analysis experiments and provides technical support for fields such as material testing and environmental monitoring.
Due to its attribute of "endogenous metabolite", this product is also used in the research field related to metabolic diseases. It provides basic substances for exploring metabolic pathways in organisms and analyzing the functions of metabolites, and helps researchers carry out studies in directions such as cellular metabolism and disease mechanisms.
| Item | Specification Parameters | Description |
|---------------------|---------------------------------------------------|------------------------------------------|
| CAS No. | 149-30-4 | Unique chemical substance identifier, in line with international standards |
| Molecular Formula | C₇H₅NS₂ | Clear molecular composition, with purity suitable for industrial/scientific research needs |
| Molecular Weight | 167.251 | Theoretical calculation value, with minimal deviation from actual detection values |
| Melting Point Range | 177-181℃ (lit.) | Literature-verified value, reference standard for process control |
| Density (25℃) | 1.5±0.1 g/cm³ | Stable density at normal temperature, convenient for material measurement |
| Flash Point | 243℃ (dec.) | Flash point at decomposition temperature, guiding storage and heating operations |
| Solubility | Soluble in organic solvents/dilute alkaline solutions; insoluble in water/gasoline | Adaptable to application needs in multiple scenarios |
| Appearance | Beige or light yellow powder, no obvious caking | General appearance standard for industrial-grade products |
This product belongs to Class 9 dangerous goods, with a transportation code of UN 3077 9/PG 3. The packaging must be clearly marked with dangerous goods labels, CAS No., and product name to avoid misjudgment or confusion during transportation.
Sealed packaging containers with good sealing performance (e.g., iron drums or cardboard drums lined with plastic bags) should be used to ensure the packaging is complete without leakage or damage. This prevents dust scattering or moisture absorption and deterioration during transportation. At the same time, the packaging must comply with the anti-impact and anti-extrusion standards for the transportation of industrial chemicals.
Mixed loading and transportation with strong oxidizing agents are strictly prohibited to avoid safety accidents caused by chemical reactions. Transportation vehicles must be equipped with dry powder, carbon dioxide fire extinguishers, and emergency leakage treatment tools (e.g., gas masks, chemical protective clothing), and the exhaust pipes must be equipped with flame arresters. During transportation, exposure to sunlight, rain, and high-temperature environments should be avoided. When stopping halfway, the vehicle should be kept away from ignition sources and heat sources (e.g., gas stations, fire sources).
After the completion of transportation, the vehicle must be thoroughly cleaned to remove residual dust, so as to avoid cross-contamination when transporting other materials later. In case of leakage, the contaminated area should be isolated immediately, and the leakage should be collected and treated in accordance with the emergency plan. It is strictly forbidden to discharge the leakage into groundwater or sewage systems.
