You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
methyl-[2-(4-morpholin-4-ylanilino)-2-oxoethyl]-[2-oxo-2-[[(1R)-1-thiophen-2-ylethyl]amino]ethyl]azanium The above is the IUPAC name of a molecule. Write its molecular formula.
user
C21H29N4O3S+
assistant