You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
sodium;(3S,4S)-3-[[2-(2-amino-1,3-thiazol-4-yl)-2-methoxyiminoacetyl]amino]-2-oxo-4-[(2-thiophen-2-ylacetyl)oxymethyl]azetidine-1-sulfonate The above is the IUPAC name of a molecule. Write its molecular formula.
user
C16H16N5NaO8S3
assistant