7096
In our study , the percutaneous penetration of the occupationally relevant chemicals anisole , cyclohexanone and 1 , 4 - dioxane was investigated for freshly excised as well as for 4 and 30 days at - 20 degrees C stored human skin using the diffusion cell technique .
 Chemical: anisole; Chemical: cyclohexanone; Chemical: 1 , 4 - dioxane
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: anisole; Chemical: cyclohexanone; Chemical: 1 , 4 - dioxane