You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named (2S)-2-[[(2S)-2-hydroxy-3-phenoxypropyl]amino]-3-(4-quinolin-2-yloxyphenyl)propan-1-ol by IUPAC nomenclature, provide its molecular formula.
user
C27H28N2O4
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