12359
Cyanidin was the most potent inhibitor of human UGT with IC ( 50 ) = 69 micro M ( at 200 micro M substrate concentration ) and competitive type of action .
 Cyanidin
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Chemical 
Text: {0} 
Answer:
 Cyanidin