16489
On 8 visits , healthy women ( n = 8 ) received intravaginal taggant ( 2 - butyl acetate , 2 - pentyl acetate , isopropyl butyrate , or 2 - pentyl butyrate ; 30 mg ) formulated in hydroxyethylcellulose or tenofovir placebo gel .
 Chemical: 2 - butyl acetate; Chemical: 2 - pentyl acetate; Chemical: isopropyl butyrate; Chemical: 2 - pentyl butyrate; Chemical: tenofovir
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: 2 - butyl acetate; Chemical: 2 - pentyl acetate; Chemical: isopropyl butyrate; Chemical: 2 - pentyl butyrate; Chemical: tenofovir