IUPAC:3-{3',6'-dihydroxy-3-oxo-3H-spiro[2-benzofuran-1,9'-xanthen]-5-yl}-1-[2-(4-{2-methyl-3-oxo-3H,7H-imidazo[1,2-a]pyrazin-6-yl}phenoxy)ethyl]thiourea
IUPAC:3-{3',6'-dihydroxy-3-oxo-3H-spiro[2-benzofuran-1,9'-xanthen]-5-yl}-1-[2-(4-{2-methyl-3-oxo-3H,7H-imidazo[1,2-a]pyrazin-6-yl}phenoxy)ethyl]thiourea