30504
Interestingly , compounds 27 and 34 , being very potent against MGC - 803 cells , exhibited no significant cytotoxicity against normal human embryonic kidney cells at up to 55 mu M and 70 mu M , respectively .
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Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
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