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system
Provide the molecular formula for the IUPAC named substance 9-ethyl-4-phenyl-2-[3-[4-[2-phenyl-6-(4-phenylphenyl)pyrimidin-4-yl]phenyl]phenyl]-1,10-phenanthroline;9-methyl-4-phenyl-2-[3-[4-[6-phenyl-2-(4-phenylphenyl)pyrimidin-4-yl]phenyl]phenyl]-1,10-phenanthroline .
user
C107H74N8
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