Structural formula:

Molecular formula: C₁₈H₁₉ClN₄
Molecular weight:326.84
Property:It is light yellow crystal powder,odorless and tasteless
Specification:China Pharmacopoeia 2005 edition 2nd book
    Loss on drying:Not more than 1.0%
    Assay: Not less than 98.5%(dry)
    Residue on ignition: Not more than 0.1%
    Melting point: 181 ~185 ℃
Use: Anxiolytic.Anticonvulsant
Registered number of approval:National drug standard H37022202