3114
The loading ratio of 5 ( 6 ) - carboxyfluorescein is as high as 110 % with a drug concentration of 0 . 45 mg mL ( - 1 ) .
 5 ( 6 ) - carboxyfluorescein
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Chemical 
Text: {0} 
Answer:
 5 ( 6 ) - carboxyfluorescein