IUPAC:tert-butyl 1-{[3',6'-bis(dimethylamino)-3-oxo-3H-spiro[2-benzofuran-1,9'-xanthen]-5-yl]formamido}-3,6,9,12-tetraoxapentadecan-15-oate
IUPAC:tert-butyl 1-{[3',6'-bis(dimethylamino)-3-oxo-3H-spiro[2-benzofuran-1,9'-xanthen]-5-yl]formamido}-3,6,9,12-tetraoxapentadecan-15-oate