Synonyms: 1H-7,10-Imino-14,16-methano-21,18:22a,5-dinitrilopyrrolo[2,3-i][1]benzazacyclononadecine,nickelate(4-) deriv.;1H-7,10-Imino-14,16-methano-21,18:22a,5-dinitrilopyrrolo[2,3-i][1]benzazacyclononadecine-4,9,20-tripropanoicacid,19-(2-amino-2-oxoethyl)-8,25-bis(carboxymethyl)-2,3,3a,4,11,12,13,14,16,17,19,20,21,22-tetradecahydro-3a,19-dimethyl-2,11-dioxo-,nickel complex, stereoisomer