Appearance: White or off-white crystalline powder

Identification: The infrared absorption spectrum should match that of the reference spectrum.

Content: 98.0%–102.0%

Molecular weight: 386.53

Purity: ≥98.8%

Relevant Substances: Total impurities ≤ 1.2%, number of impurities ≤ 4, maximum single impurity ≤ 0.8%

Quality: Meets the requirements of both the Chinese Pharmacopoeia and the United States Pharmacopeia