p-Toluenethiol
Pharmaceutical Materials 2025-03-02
CAS Number: 106-45-6
Molecular Formula: C7H8S
Molecular Weight: 124.203 g/mol
Appearance: White or colorless solid with an unpleasant odor
Boiling Point: 195 °C
Melting Point: 84-86 °C
Density: 1.0±0.1 g/cm³
Usage: Used in organic synthesis, dye synthesis, and pharmaceuticals.
| Attribute | Information |
|---|---|
| Chemical Name | p-Toluenethiol |
| Synonyms | 4-Methylbenzenethiol, 4-Methylthiophenol, p-Cresol thiol |
| CAS Number | 106-45-2 |
| Molecular Formula | C7H8S |
| Molecular Weight | 124.2 g/mol |
| Physical State | Colorless to pale yellow liquid with a strong, unpleasant odor |
| Density | 1.064 g/mL at 25°C |
| Boiling Point | 205-207°C |
| Refractive Index | 1.566-1.568 |
| Flash Point | 86°C (closed cup) |
| Solubility | Slightly soluble in water, soluble in organic solvents |
| Chemical Properties | Aromatic thiol with a methyl-substituted phenyl ring in the para position; undergoes typical thiol reactions such as oxidation, disulfide formation, and nucleophilic substitution |
| Applications | Used as an intermediate in the synthesis of dyes, pesticides, and pharmaceuticals; also used in the production of rubber accelerators and perfumes |
| 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, dry, 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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