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system
What is the molecular formula of the molecule identified by 3,6-bis(4-ethenylphenyl)-9-ethylcarbazole;3,6-bis(4-ethenylphenyl)-9-(2-ethylhexyl)carbazole;3,6-bis(4-ethenylphenyl)-9-[(E)-2-phenylethenyl]carbazole;2-[(4-ethenylphenyl)methoxy]-9-[(4-ethenylphenyl)methyl]carbazole ?
user
C132H114N4O
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