TCS, C12H7Cl3O2, P97% purity (HPLC), was purchased from Sigma
Aldrich. All reagents and standards used in enzyme assays were
purchased from the Nanjing Jiancheng Bioengineering Institute
(Nanjing, China). All other reagents used in the tests were purchased
from the Beijing Guoyao Chemical Co., Ltd. (Beijing, China)
and were of analytical grade with chemical purity of 97–99%.