26657
Cytochrome P450 2E1 ( CYP 450 2E1 ) , activity was determined as hydroxylation of aniline in liver microsomes .
 Chemical: aniline
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: aniline