14517
The SM was heavily doped with 6 - mercaptohexanol exchanged QDs up to 12 vol % ( 26 wt % ) without particle aggregation .
 6 - mercaptohexanol
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Chemical 
Text: {0} 
Answer:
 6 - mercaptohexanol