You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named 2-[2-[4-(2-methyl-1,3-oxazol-4-yl)phenoxy]ethylamino]-1-pyridin-3-ylethanol by IUPAC nomenclature, provide its molecular formula.
user
C19H21N3O3
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