1-(tert-butyl) 5-methyl (R)-2-(1,4,7,10-tetraazacyclododecan-1-yl)pentanedioate-5g 1-(tert-butyl) 5-methyl (R)-2-(1,4,7,10-tetraazacyclododecan-1-yl)pentanedioate Additional information Additional information Weight 0.005 kg Size 5 g For Research & Development use only. Not for testing and/or use on humans.