You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
1-N-[(2-ethyl-1,3-thiazol-5-yl)methyl]-2-N,2-N,2-trimethylpropane-1,2-diamine is the IUPAC name of a molecule. Please give its molecular formula.
user
C12H23N3S
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