You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named 3-[(2R,5E,7E,9Z)-2-amino-4-[2-ethyl-4-(nitrosomethyl)phenyl]-6-methyl-8-(nitrosomethyl)dodeca-5,7,9-trien-4-yl]-4H-1,2,4-oxadiazol-5-one by IUPAC nomenclature, provide its molecular formula.
user
C25H33N5O4
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