18140
Compounds 5 , 7 , 8 , 10 , and 11 exhibited potent cytotoxic activity with IC50 values of 1 . 42 - 8 . 42 micro M , while 6 , 9 , and 12 showed selective cytotoxic activity toward the tested cell lines .
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Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Chemical 
Text: {0} 
Answer:
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