1,12-Dihydroxy-1,6,12,17-tetraazacyclodocosane-2,5,13,16-tetrone 1,6,12,17-Tetraazacyclodocosane-2,5,13,16-tetrone, 6,17-dihydroxy- 1,6,12,17-Tetraazacyclodocosane-2,5,13,16-tetrone, 6,17-dihydroxy- 9CI 112972-60-8 Bisucaberin