6466
4 . When examined recombinant rat cytochrome P450 isoforms catalyzing the metabolism of BP - 3 , 5 - hydroxylation was catalyzed by P450 3A2 , 1A1 , 2B1 , 2C6 and 2D1 , while 4 - desmethylation was catalyzed by P450 2C6 and 1A1 .
 Chemical: BP - 3
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: BP - 3