The results of Ames and micronucleus tests were negative, but the result of chromosome aberration test was positive.

• 风湿平Ames试验、小鼠骨髓细胞微核试验结果均为阴性; CHL细胞染色体畸变试验结果为阳性,经过S9代谢活化后致突变作用降低。