325726-98-5

2,6,10,14,18,22-Hexaazapentacosanedioic acid,3,4,4,7,8,8,11,12,12,15,16,16,19,20,20,23,24,24-octadecamethyl-5,9,13,17,21-pentaoxo-, 1-(1,1-dimethylethyl) 25-methyl ester,(3S,7S,11S,15S,19S,23S)-