Synonyms: Iron,[cyclic(glycylglycylglycyl-N6-hydroxy-N6-methyl-6-oxo-L-lysyl-N6-hydroxy-N6-methyl-6-oxo-L-lysyl-N6-hydroxy-N6-methyl-6-oxo-L-lysylato)(3-)]-,(OC-6-21-A)-; 1,4,7,10,13,16-Hexaazacyclooctadecane, cyclic peptide deriv.,iron complex; 1,4,7,10,13,16-Hexaazacyclooctadecane, iron deriv.;Cyclic(glycylglycylglycyl-N6-hydroxy-N6-methyl-6-oxo-L-lysyl-N6-hydroxy-N6-methyl-6-oxo-L-lysyl-N6-hydroxy-N6-methyl-6-oxo-L-lysyl),iron complex; Cyclo(glycylglycylglycyl-N6-hydroxy-N6-methyl-6-oxo-L-lysyl-N6-hydroxy-N6-methyl-6-oxo-L-lysyl-N6-hydroxy-N6-methyl-6-oxo-L-lysyl),iron complex; Retrohydroxamate ferrichrome