3-Methylbenzenethiol
Pharmaceutical Materials 2025-03-02
CAS Number: 108-40-7
Molecular Formula: C7H8S
Molecular Weight: 124.20 g/mol
Appearance: Clear colorless to light yellow liquid
Boiling Point: 195.0 °C at 760 mmHg
Density: 1.044 g/cm³
Melting Point: Below -20 °C
Usage: Mainly used as an intermediate in pesticides, resins, plasticizers, and fragrances.
| Attribute | Information |
|---|---|
| Chemical Name | 3-Methylbenzenethiol |
| Synonyms | m-Tolyl thiol, 3-Methylthiophenol, m-Cresol thiol |
| CAS Number | 108-46-3 |
| Molecular Formula | C7H8S |
| Molecular Weight | 124.2 g/mol |
| Physical State | Colorless to pale yellow liquid with a strong, unpleasant odor |
| Density | 1.057 g/mL at 25°C |
| Boiling Point | 193-195°C |
| Refractive Index | 1.564-1.566 |
| Flash Point | 74°C (closed cup) |
| Solubility | Slightly soluble in water, soluble in organic solvents |
| Chemical Properties | Aromatic thiol with a methyl-substituted phenyl ring; undergoes typical thiol reactions such as oxidation, disulfide formation, and nucleophilic substitution |
| Applications | Used as an intermediate in the synthesis of pesticides, dyes, and pharmaceuticals; also used as a flavoring agent in certain foods and beverages |
| Hazard Classification | Flammable liquid, harmful if swallowed or inhaled, may cause skin and eye irritation, and is toxic to aquatic organisms |
| Safety Precautions | Store in a cool, well-ventilated area, keep away from heat, sparks, and open flames, use with adequate ventilation, wear appropriate protective clothing, and avoid contact with skin and eyes |
| Disposal | Dispose of in accordance with local regulations and guidelines for hazardous waste; avoid release to the environment |
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