64326-01-8 4,7,12,15-Tetraazanonadecan-19-oic acid,2,9,17-trihydroxy-13-methyl-5-(1-methylethyl)-8,16-bis(2-methylpropyl)-3,6,11,14-tetraoxo- 425394-93-0 1,4,8,11-Tetraazacyclotetradeca-4,7,11,14-tetraene,5,7,12,14-tetraphenyl- 82645-96-3 1,12,15,18,29,32-Hexaoxa-3,10,20,27-tetraazacyclotetratriacontane-2,11,19,28-tetrone