19509
Compounds 6 and 8 exhibited antiproliferative activities against endothelial cells with IC50 values of 2 . 4 and 2 . 5 mu g / mL , respectively .
 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