4865
Finally , APS3 efficiently blocked acetylcholine - activated membrane inward currents flowing through Torpedo nicotinic acetylcholine receptors ( nAChRs ) incorporated to Xenopus oocytes , with an IC ( 50 ) of 0 . 19 mu M .
 Chemical: APS3; Chemical: acetylcholine; Chemical: acetylcholine
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: APS3; Chemical: acetylcholine; Chemical: acetylcholine