1361
Oral doses of BPB were well - absorbed ( > 83 % ) and eliminated chiefly in urine ( 83 - 84 % ) ; <= 1 % of the radioactivity remained in tissues at 24 h or 72 h after dosing .
 Chemical: BPB
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: BPB