23080
Rat dams were exposed to 0 , 1 and 2mg / kg / day of BDE - 99 from gestation day 6 to post - natal day 21 .
 Chemical: BDE - 99
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: BDE - 99