20492
The TTBC - I aggregates prepared in pure water ( pH = 6 ) are characterized by a single redshifted absorption band ( type III spectrum ) , whereas those prepared in alkaline solution at pH = 13 show a typical Davydov - split ( type I ) absorption band .
 Chemical: TTBC - I
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: TTBC - I