You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
The molecule is a fluorescent dye and belongs to the fluorescent class of molecules. Use the above information to create a molecule.
user
C=C(C=CC=CC=C1N(CCC(=O)NCCCCC(NC(=O)CCC)C(=O)O)N=C(C)C1(C)CCCS(=O)(=O)O)C(C)(C)c1cc(S(=O)(=O)O)ccc1C
assistant