You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named 2-methyl-1-[3-(oxan-4-ylmethoxy)propyl]-3-[2-(4-sulfamoylphenyl)ethyl]guanidine by IUPAC nomenclature, provide its molecular formula.
user
C19H32N4O4S
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