4725
Our results suggest that in addition to stabilizing the c - myc G - quadruplex , the flavone derivatives were capable of inducing the formation of the G - quadruplex structure even in the absence of monovalent cations .
 flavone
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Chemical 
Text: {0} 
Answer:
 flavone