14291
Compounds 1 , 3 , 4 , 9 , 10 and 15 showed inhibitory potency with IC ( 50 ) values of 7 . 4 , 6 . 4 , 4 . 3 , 9 . 4 , 9 . 2 and 4 . 5 mu M , respectively .
 None
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 None