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system
Provide the molecular formula for the IUPAC named substance 4-ethyl-5-(4-methoxyphenyl)-11-(1,3-thiazol-2-yl)-2,3,7,11-tetrazatricyclo[7.4.0.02,6]trideca-1(9),3,5,7,12-pentaen-10-one .
user
C21H17N5O2S
assistant