767
QNT3 - 18 or QNT3 - 20 showed a strong single endothermic peak at 159 . 34 degrees C with 10 . 79 mu m - sized or at 150 . 69 degrees C with 9 . 0 mu m - sized aggregated particles , respectively .
 QNT3 - 18, QNT3 - 20
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Chemical 
Text: {0} 
Answer:
 QNT3 - 18, QNT3 - 20