The Molecular Structure of  4-Chlorobenzhydrol (CAS NO.119-56-2):

Empirical Formula: C₁₃H₁₁ClO
Molecular Weight: 218.6788 
IUPAC Name:  (4-chlorophenyl)-phenylmethanol    
Appearance: white crystalline powder
Nominal Mass: 218 Da
Average Mass: 218.6788 Da
Monoisotopic Mass: 218.049843 Da 
Index of Refraction: 1.609
Molar Refractivity: 61.99 cm³
Molar Volume: 179 cm³
Surface Tension: 47.3 dyne/cm
Density: 1.221 g/cm³
Flash Point: 166.8 °C
Enthalpy of Vaporization: 62.99 kJ/mol
Boiling Point: 352.2 °C at 760 mmHg
Vapour Pressure: 1.45E-05 mmHg at 25°C 
Water Solubility insoluble
Synonyms: (4-Chlorophenyl)phenylmethanol ; 4-Chlorobenzhydrol ; AI3-20881 ; Benzhydrol, p-chloro- ; Chlorbenzhydrol ; Chlorobenzhydrol ; EINECS 204-333-4 ; p-Chlorobenzhydrol ; 4-Chlorobenzhydryl alcohol ; Benzenemethanol, 4-chloro-alpha-phenyl- ; Benzhydrol, 4-chloro- (8CI) ;
Product Categories: Benzhydrols, Benzyl & Special Alcohols;Pharmaceutical Intermediate;Alcohols;C9 to C30;Oxygen Compounds

 4-Chlorobenzhydrol (CAS NO.119-56-2) is used for manufacture of anti-allergic cetirizine.

Hazard Codes: 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: 24/25-36-26 
S24/25: Avoid contact with skin and eyes
S36: Wear suitable protective clothing
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice
WGK Germany: 3