quinizarin sulfonic acid

例句：

1. 1. This compound is used in the treatmentof malaria.
   这种化合物用于治疗疟疾。
2. 2. The drug was effective in reducingfever and pain.
   这种药物在降低发热和疼痛方面是有效的。
3. 3. Thepatient's condition improvedsignificantly after taking the medication.
   患者服用药物后病情明显好转。