8367
The homologue O , O ' - bis ( sodium 2 - dodecylcarboxylate ) - p - benzenediol ( C ( 12 ) phi C ( 12 ) ) whose spacer only contains a single phenyl group was also examined for comparison .
 Chemical: O , O ' - bis ( sodium 2 - dodecylcarboxylate ) - p - benzenediol; Chemical: C ( 12 ) phi C ( 12 ); Chemical: phenyl
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: O , O ' - bis ( sodium 2 - dodecylcarboxylate ) - p - benzenediol; Chemical: C ( 12 ) phi C ( 12 ); Chemical: phenyl