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-[[4-amino-5-(2,6-difluorobenzoyl)-1,3-thiazol-2-yl]amino]-N-[2-(methylamino)ethyl]cyclohexa-2,4-diene-1-sulfonamide .
user
C19H21F2N5O3S2
assistant