IUPAC: 2,5-dioxopyrrolidin-1-yl 1-[({3',6'-dihydroxy-3-oxo-3H-spiro[2-benzofuran-1,9'-xanthen]-5-yl}carbamothioyl)amino]-3,6,9,12,15-pentaoxaoctadecan-18-oate

SMILES: Oc1ccc2c(Oc3cc(O)ccc3C22OC(=O)c3cc(NC(=S)NCCOCCOCCOCCOCCOCCC(=O)ON4C(=O)CCC4=O)ccc23)c1