26402
Further studies using confocal fluorescence microscopy confirmed that the most potent biphenyl derivative identified thus far , compound 7 , exerts its pharmacologic effect specifically in the M phase and induces monoaster formation .
 Chemical: biphenyl
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
 Entities: biphenyl 
Answer:
 Chemical: biphenyl