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Chloro-[3-[5,7,13,15-tetrabutyl-1,3,11-tris(3-chloroazanidylpropyl)-2,4,6,8,10,12,14,16,18,19,20,21-dodecaoxa-1,3,5,7,9,11,13,15-octasilapentacyclo[9.6.1.13,9.15,15.17,13]henicosan-9-yl]propyl]azanide


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