3,4'-Dibenzo-21-crown-7

dibenzo-21-crown-7 ; [3,4]-dibenzo-21-crown-7 ; [2,5]-dibenzo-21-crown-7 ; dibenzo-21-crown 7-ether ; 3,4-dibenzo-21-crown-7 98% ; [3,4]-dibenzo-21-crown-7,98% ; dibenzo[b,k]-1,4,7,10,13,16,19-heptaoxacycloheneicosane ; 6,7,10,12,13,15,16,23,24-decahydrodibenzo[b,h][1,4,7,10,13,16,19]heptaoxacycloheneicosin ; 6,7,9,10,12,13,20,21,23,24-decahydrodibenzo[b,k][1,4,7,10,13,16,19]heptaoxacyclo heneicosin