3,5-Dimethylphenol
Agrochemicals 2025-03-02
3,5-Dimethylphenol
Chemical Name: 3,5-Dimethylphenol
Synonyms: 3,5-Xylenol; 1-Hydroxy-3,5-dimethylbenzene
CAS Number: 108-68-9
Molecular Formula: C₈H₁₀O
Molecular Weight: 122.16 g/mol
Physical & Chemical Properties
| Property | Specification |
|---|---|
| Appearance | White to pale pink crystalline solid |
| Odor | Phenolic, medicinal |
| Melting Point | 63-65°C (145-149°F) |
| Boiling Point | 219-221°C (426-430°F) |
| Density | 1.036 g/cm³ (20°C) |
| Flash Point | 96°C (205°F) |
| Solubility | Slightly soluble in water (3.5 g/L at 20°C); soluble in ethanol, ether |
| pKa | 10.15 (weak acid) |
Hazard & Safety Information (GHS)
Classification:
- Acute Toxicity 4 (Oral)
- Skin Corrosion/Irritation 2
- Serious Eye Damage 1
Hazard Codes:
• H302: Harmful if swallowed
• H315: Causes skin irritation
• H318: Causes serious eye damage
• H411: Toxic to aquatic life
Precautionary Statements:
• P264: Wash hands thoroughly after handling
• P280: Wear protective gloves/eye protection
• P301+P312: IF SWALLOWED: Call poison center
• P305+P351+P338: Eye contact rinse procedure
Chemical Reactivity
• Reacts with:
- Strong oxidizers (risk of combustion)
- Bases to form salts
- Formaldehyde (condensation reactions)
• Air-sensitive (oxidizes slowly)
Applications
✔ Disinfectant formulations
✔ Resin and plasticizer production
✔ Pharmaceutical intermediate (antiseptics)
✔ Antioxidant in rubber industry
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