You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Please write the molecular formula of the molecule N-(3,4-dimethylphenyl)-2-[2,4-dioxo-5-[(1-prop-2-ynylindol-3-yl)methylidene]-1,3-thiazolidin-3-yl]acetamide .
user
C25H21N3O3S
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