Methods: According to the methods of Chinese Pharmacopoeia, used IR, UV, HPLC, and GC to test the physico-chemical property of ranolazine such as appearance, melting point, solubility, purity et al.

• 方法：根据中国药典的方法，采用IR、UV、HPLC、GC对雷诺嗪的外观、熔点、溶解度、纯度等理化性质进行了考察；