
4-Phenylthio benzyl alcohol is an aromatic thio-ether alcohol in which a phenylthio group is located para to the benzylic hydroxyl function. The compound is air-stable, freely soluble in dichloromethane, ethyl acetate, hot ethanol and toluene, and practically insoluble in water. Commercial material is supplied ≥98 % pure.
Key physicochemical data:
Melting point: 78–80 °C (lit.)
Boiling point: 398 °C / 760 mmHg (predicted)
Density: 1.19 g cm⁻³ (25 °C, solid)
Flash point: >200 °C
Log P (octanol/water): 4.1 (predicted)
Typical uses:
Versatile building block for 4-phenylthio-benzyl esters, ethers and amines used in pharmaceutical and agro-chemical synthesis.
Precursor for sulfur-containing optical brighteners, UV-absorbers and polymer-chain transfer agents.
Model substrate for mechanistic studies on benzylic alcohol oxidation and disulfide-mediated radical reactions.
Quality specification (commercial grade):
Purity (GC): ≥98 %
Water content (KF): ≤0.3 %
Free acid (as benzoic acid): ≤0.5 %
Residue on ignition: ≤0.1 %
Heavy metals: ≤20 ppm
Hazard statement:
Causes skin and eye irritation (H315 + H319). Harmful if swallowed (R22). Avoid inhalation of dust; use gloves, goggles and adequate ventilation. Store in a cool, dry place away from oxidants. SDS available on request.