25047
The control over the formation of a bi - component porous network was attained by the self - assembly at a solid - liquid interface by exploiting both primary and secondary non - covalent interactions between melamine and N ( 3 ) - alkylated xanthine modules .
 melamine, N ( 3 ) - alkylated xanthine
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Chemical 
Text: {0} 
Answer:
 melamine, N ( 3 ) - alkylated xanthine