17284
The IC ( 50 ) of XCGZC was 5 . 37 mg / mL , which was equal to the antioxidant ability of 3 . 28 mg / mL BHT .
 None
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
 Entities:  
Answer:
 None