Toluene-3,4-dithiol
Pharmaceutical Materials 2025-03-02
CAS Number: 496-74-2
Molecular Formula: C7H8S2
Molecular Weight: 156.27 g/mol
Appearance: White or colorless to light orange powder
Boiling Point: 265.5°C (at 760 mmHg)
Melting Point: 30-33°C
Density: 1.2±0.1 g/cm³
Usage: Used as an organic synthesis intermediate.
| Category | Information |
|---|---|
| Basic Information | |
| Chemical Name | Toluene-3.4-dithiol |
| Synonyms | 3.4-Toluenedithiol; 3.4-Dimercaptotoluene; 4-Methyl-1.2-benzenedithiol; 3.4-Dithiol Toluene; Toluene-3.4-bis(thiol); 3.4-Dithiotoluene |
| CAS Number | 496-74-2 |
| Molecular Formula | C7H8S2 |
| Molecular Weight | 156.27 g/mol |
| Physical Properties | |
| Appearance | White to yellow crystalline low melting solid (may also appear as a colorless oily liquid in liquid state) |
| Melting Point | 30~33 °C |
| Boiling Point | 265.5±20.0 °C at 760 mmHg |
| Density | 1.2±0.1 g/cm³ (or 1.179 g/mL at 25 °C) |
| Flash Point | 122.8±15.7 °C (or >230 °F) |
| Refractive Index | 1.6180 (estimate) |
| Solubility | Soluble in benzene and aqueous alkali hydroxide solutions |
| Vapor Pressure | 0.015 mmHg at 25°C |
| Safety Information | |
| Hazard Class | Corrosive |
| Risk Phrases | R22 (Harmful if swallowed); R37/38 (Irritating to respiratory system and skin); R41 (Risk of serious damage to eyes) |
| Safety Phrases | S26 (In case of contact with eyes, rinse immediately with plenty of water and seek medical advice); S36/37/39 (Wear suitable protective clothing, gloves, and eye/face protection) |
| Storage Conditions | Store in a cool, dry, and well-ventilated place. Keep away from incompatible materials such as strong oxidizing agents and strong bases. |
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