You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Please write the molecular formula of the molecule 4-[[[6-[4-(diaminomethylideneamino)benzoyl]oxy-1,2,3,4-tetrahydronaphthalene-2-carbonyl]-ethylamino]methyl]thiophene-2-carboxylic acid .
user
C27H28N4O5S
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