SMILES: C1[C@@H]([C@H](O[C@H]1N2C=C(C(=NC2=O)N)Br)COP(=O)(O)O[C@H]3C[C@@H](O[C@@H]3COP(O)O)N4C5=C(C(=O)NC(=N5)N)N=C4Br)O
Description: The molecule is a single-stranded DNA polynucleotide consisting of a repeating unit of brominated deoxyguanosine and deoxycytidine residues, with all residues connected by 3'->5' phosphodiester linkages. The sites of bromination are at C-8 of guanine and C-5 of cytosine, although not all these sites are brominated, with bromination at the guanine C-8 predominating.