U 78517F [ 2-MAC,2-((4-(2,6-di-1-pyrrolidinyl-4-pyrimidinyl)-1-piperazinyl)methyl)-3,4-dihydro-2,5,7,8-tetramethyl-2H-1-benzopyran-6-ol.di-HCl,2-methyl aminochroman,PNU 83836E,PNU-83836E,PNU83836E,U 78517F, (R)-isomer,U 78517F, (S)-isomer,U 78517F, citrate salt (1:2),U 78517G,U 83836E,U-78,517G,U-78517F,U-78517G,U-83836E,U78517F ] iron-catalyzed lipid peroxidation inhibitor; structure given in first source; RN given is for diHCl