Chemical Name: Hexa-tert-butyl 11,11'-(1,4-phenylenebis(methylene))bis(1,4,8,11-tetraazacyclotetradecane-1,4,8-tricarboxylate)
Smile: O=C(N1CCN(C(OC(C)(C)C)=O)CCCN(C(OC(C)(C)C)=O)CCN(CC2=CC=C(CN3CCN(C(OC(C)(C)C)=O)CCCN(C(OC(C)(C)C)=O)CCN(C(OC(C)(C)C)=O)CCC3)C=C2)CCC1)OC(C)(C)C