IUPAC:3-(14-azido-3,6,9,12-tetraoxatetradecan-1-yl)-1-{3',6'-dihydroxy-3-oxo-3H-spiro[2-benzofuran-1,9'-xanthen]-5-yl}thiourea
IUPAC:3-(14-azido-3,6,9,12-tetraoxatetradecan-1-yl)-1-{3',6'-dihydroxy-3-oxo-3H-spiro[2-benzofuran-1,9'-xanthen]-5-yl}thiourea