5,11,17,23-tetrakis(tert-butyl)-25,26,27,28-tetrapropyloxycalix[4]arene
25,26,27-tripropoxy-28-[(3-(4-iodophenoxy)propoxy)]-5,11,17,23-tetra(tert-butyl)calix[4]arene
C72H87O5P
5,11,17,23-tetra-tert-butyl-25-(p-nitrobenzenesulfonyloxy)-26,27,28-tripropoxycalix[4]arene
23-tert-butyl-5,11,17-trinitro-25-(p-nitrobenzenesulfonyloxy)-26,27,28-tripropoxycalix[4]arene