IUPAC Name: 4-(Trifluoromethoxy)phenol
Canonical SMILES: C1=CC(=CC=C1O)OC(F)(F)F
InChI: InChI=1S/C7H5F3O2/c8-7(9,10)12-6-3-1-5(11)2-4-6/h1-4,11H
InChIKey: WDRJNKMAZMEYOF-UHFFFAOYSA-N
Molecular Weight: 178.10861 [g/mol]
Molecular Formula: C₇H₅F₃O₂
XLogP3: 2.6
H-Bond Donor: 1
H-Bond Acceptor: 5 
EINECS: 212-583-0
Product Categories: Trifluoroanisole series; Aromatic Hydrocarbons (substituted) & Derivatives; Aromatic Phenols; Phenol&Thiophenol&Mercaptan; API intermediates; Organic Building Blocks; Oxygen Compounds; Phenols; Trifluoro-methoxy-benzene series 
Index of Refraction: 1.462
Molar Refractivity: 35.26 cm³
Molar Volume: 128.2 cm³
Surface Tension: 30.9 dyne/cm
Density: 1.388 g/cm³
Flash Point: 86.1 °C
Enthalpy of Vaporization: 44.11 kJ/mol
Boiling Point: 187.5 °C at 760 mmHg
Vapour Pressure: 0.455 mmHg at 25 °C
Appearance of 4-(Trifluoromethoxy)phenol (CAS NO.828-27-3): clear brown liquid

 4-(Trifluoromethoxy)phenol (CAS NO.828-27-3) is used as an Intermediates of Liquid Crystals.

Hazard Codes: Xi,Xn
Risk Statements: 20/21/22-36/37/38 
R20/21/22:Harmful by inhalation, in contact with skin and if swallowed. 
R36/37/38:Irritating to eyes, respiratory system and skin.
Safety Statements: 26-27-36/37/39 
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. 
S27:Take off immediately all contaminated clothing. 
S36/37/39:Wear suitable protective clothing, gloves and eye/face protection.
RIDADR: 2927
WGK Germany: 2
Hazard Note: Irritant
HazardClass: 6.1
PackingGroup: III

 4-(Trifluoromethoxy)phenol (CAS NO.828-27-3), its Synonyms are p-(Trifluoromethoxy)phenol ; 4-Hydroxytrifluoromethoxybenzene ; p-Trifluoromethoxyphenol ; 4-(Trifluoro methoxy) phenol .