1-FTI 145724-06-7 Benzenepropanamide, N-(6-((((3',6'-dihydroxy-3-oxospiro(isobenzofuran-1(3H),9'-(9H)xanthen)-5-yl)amino)thioxomethyl)amino)hexyl)-alpha-(mercaptomethyl)- N-(Fluoresceinyl)-N'-(1-(6-(3-mercapto-2-benzyl-1-oxopropyl)amino)-1-hexyl)thiocarbamide