23753
Isoamyl nitrite has previously been considered acceptable as an inhaled cyanide antidote ; therefore , the antidotal utility of this organic nitrite compared with sodium nitrite was investigated .
 Chemical: Isoamyl nitrite; Chemical: cyanide; Chemical: nitrite; Chemical: sodium nitrite
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: Isoamyl nitrite; Chemical: cyanide; Chemical: nitrite; Chemical: sodium nitrite