26537
SDS - PAGE of pure CPC yielded two bands corresponding to alpha and beta subunits ; the molecular weight of alpha subunit is 17 . 0kDa , whereas the molecular weight of beta subunit is 19 . 5kDa .
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Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Chemical 
Text: {0} 
Answer:
 None