Showing structure for (2s)-2-{[(2e,4e,6e,8e,10e,12e,14e)-15-{[(1s)-1-carboxy-2-methylpropyl]-c-hydroxycarbonimidoyl}-1-hydroxypentadeca-2,4,6,8,10,12,14-heptaen-1-ylidene]amino}butanedioic acid