L-Cysteine, S-[[3-(mercaptomethyl)-5-[[[2-[[2-[4,7,10-tris(carboxymethyl)-1,4,7,10-tetraazacyclododec-1-yl]acetyl]amino]ethyl]thio]methyl]phenyl]methyl]-N-(1-oxohexyl)-L-cysteinyl-L-prolyl-L-prolyl-L-threonyl-L-glutaminyl-L-phenylalanyl-, cyclic (1→7)-thioether
FAP2286