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2 . We have developed a convenient quantitative multi - well plate assay to measure the glucuronidation rate of 7 - hydroxy - 4 - trifluoromethylcoumarin ( HFC ) for several UGTs .
 Chemical: 7 - hydroxy - 4 - trifluoromethylcoumarin; Chemical: HFC
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: 7 - hydroxy - 4 - trifluoromethylcoumarin; Chemical: HFC