You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N-(1,3-benzothiazol-2-yl)-2-(3,5-dimethyl-4-nitropyrazol-1-yl)-N-ethylacetamide is the IUPAC name of a molecule. Please give its molecular formula.
user
C16H17N5O3S
assistant