2-[(1R,4S,10R,13S,16R,19S,25S)-10-[2-[2-[2-[2-[[2-(2-amino-2-oxoethoxy)acetyl]amino]ethoxy]ethoxy]ethoxy]ethylcarbamoyl]-13-benzyl-4-[4-[6-[2-[5-(4-tert-butyl-3-oxonia-13-azatetracyclo[7.7.1.02,7.013,17]heptadeca-1(17),2(7),3,5,8-pentaen-6-yl)penta-2,4-dienylidene]-4,5,6,7-tetrafluoro-3-methyl-3-(4-sulfobutyl)indol-1-yl]hexanoylamino]butyl]-25-(3-carbamimidamidopropyl)-3,6,12,15,18,21,24,27-octaoxo-8,29,30-trithia-2,5,11,14,17,20,23,26-octazabicyclo[14.11.4]hentriacontan-19-yl]acetic acid