You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
3-[(E)-4-aminobut-2-enyl]-2-[(2-ethyl-5-methylpyrazole-3-carbonyl)amino]thieno[2,3-d]imidazole-5-carboxamide;3-[(E)-4-(4-carbamoyl-2-nitroanilino)but-2-enyl]-2-[(2-ethyl-5-methylpyrazole-3-carbonyl)amino]thieno[2,3-d]imidazole-5-carboxamide;4-fluoro-3-nitrobenzamide;methane;trihydrochloride is the IUPAC name of a molecule. Please give its molecular formula.
user
C49H58Cl3FN18O10S2
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