Synonyms: | CALIX[4]-BIS-1,2-BENZO-CROWN-6;Calix[4]-bis-1,2-benzo-crown-6,95%;4,31:23,50-Dimethano-27H,54H-hexabenzo[h,q,t,c1,l1,o1][1,4,7,10,13,16,22,25,28,31,34,37]dodecaoxacyclodotetracontin, 6,7,9,10,17,18,20,21,33,34,36,37,44,45,47,48-hexadecahydro- |