（R）-(4-Chlorobenzhydryl)piperazine
CAS No.	130018-88-1/ 300543-56-0
Structure formula
Molecular weight	286.80
Property	Light yellow or white powder
Melting point	88～96℃
Specific rotation	-18.5 ～ -23.0°（20/D） （C=1.0，methyl benzene）
Loss on dry	≤5.0% (w/w)
Optical purity	≥98.0%
Use	Intermediate of anti-allergic drug  levocetirizine hydrochloride