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n - Butyl - p - hydroxybenzoate ( n - butylparaben , BPB ) is an antioxidant used in foods , pharmaceuticals and cosmetics .
 Chemical: n - Butyl - p - hydroxybenzoate; Chemical: n - butylparaben; 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: n - Butyl - p - hydroxybenzoate; Chemical: n - butylparaben; Chemical: BPB