5863
Approximately 81 . 6 % of the dose was recovered in urine , mainly as NBP - 11 - oic acid ( M5 - 2 ) and glucuronide conjugates of M5 - 2 and mono - hydroxylated products .
 Chemical: NBP - 11 - oic acid
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
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Answer:
 Chemical: NBP - 11 - oic acid