12087
It was found that the gelation capability of these dendrimers was highly dependent on dendrimer generation , and the second - generation dendrimer ( R , R ) - G ( 2 ) DPENBoc proved to be a highly efficient organogelator .
 ( R , R ) - G ( 2 ) DPENBoc
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Chemical 
Text: {0} 
Answer:
 ( R , R ) - G ( 2 ) DPENBoc