850918-55-7 7,14-Dioxa-2,4,10,12-tetraazadispiro[5.1.5.2]pentadecane-1,3,5,9,11,13-hexone, 15-[(1,1-dimethylethyl)imino]-2,4,10,12-tetramethyl- 193558-92-8 2,5,8,11,14-Pentaoxapentadecane,1,15-bis(4-methoxyphenyl)-3,4,12,13-tetraphenyl-, (3S,4S,12S,13S)-