23552
We had previously reported a fluorescein conjugate that was shown ( by confocal microscopy imaging of DS - red - labelled cortical neurons ) to bind specifically to GluN2B .
 Chemical: fluorescein
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: fluorescein