Synonyms: 1,4,7,10-Tetraazacyclohexadecane,cyclic peptide deriv.; 1H-Pyrimido[1,2-a]quinoline, pyoverdin IA deriv.;(S)-N-[[5-[(3-Carboxy-1-oxopropyl)amino]-2,3-dihydro-8,9-dihydroxy-1H-pyrimido[1,2-a]quinolin-1-yl]carbonyl]-D-seryl-L-lysylglycyl-N5-formyl-N5-hydroxy-L-ornithyl-D-seryl-L-serylglycyl-L-lysyl-N5-formyl-N5-hydroxy-D-ornithyl-L-a-glutamyl-L-serine cyclic (11®8)-peptide; L-Serine,N-[[5-[(3-carboxy-1-oxopropyl)amino]-2,3-dihydro-8,9-dihydroxy-1H-pyrimido[1,2-a]quinolin-1-yl]carbonyl]-D-seryl-L-lysylglycyl-N5-formyl-N5-hydroxy-L-ornithyl-D-seryl-L-serylglycyl-L-lysyl-N5-formyl-N5-hydroxy-D-ornithyl-L-a-glutamyl-, cyclic (11®8)-peptide, (S)-