You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(2S)-2-amino-N-[(2S)-4-diazo-4-iodo-3-oxobutan-2-yl]-3-(4-hydroxyphenyl)propanamide is the IUPAC name of a molecule. Please give its molecular formula.
user
C13H15IN4O3
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