22754
Molecular dynamics simulations at the united atom level were used to follow the freezing of a supercooled n - octane drop and show that an ordered monolayer develops on the surface of the droplet almost immediately , and the rest of the droplet then freezes in a layer - by - layer manner .
 Chemical: n - octane
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 - octane