CAS No 111755-37-4 , (5R,8S,11R,12S,15S,18S,19S,22R)-8,
15-bis[3-(diaminomethylideneamino)propyl]-18-[(1E,3E,5S,6S)-6-methoxy-3,
5-dimethyl-7-phenylhepta-1,3-dienyl]-1,5,12,
19-tetramethyl-2-methylidene-3,6,9,13,16,20,25-heptaoxo-1,4,7,10,14,17,
21-heptazacyclopentacosane-11,22-dicarboxylic acid