8,19-(Ethanoxyethanoxyethano)-8H,19H-dibenzo(b,k)(1,4,10,13,7,16)tetraoxadiazacyclooctadecine, eicosahydro-;Icosahydro-8,19-(ethanoxyethanoxyethano)-8H,19H-dibenzo(b,k)(1,4,10,13,7,16)tetraoxadiazacyclooctadecine
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