SMILES: C1[C@@H]([C@H](O[C@H]1N2C=NC3=C(N=CN=C32)N)COP(=O)(O)O[C@H]4C[C@@H](O[C@@H]4COP(=O)(O)O[C@H]5C[C@@H](O[C@@H]5COP(=O)(O)O)N6C=NC7=C6N=C(NC7=O)N)N8C=NC9=C8N=C(NC9=O)N)O
Description: The molecule is a single-stranded DNA polynucleotide consisting of a repeating sequence of two deoxyguanosine residues and one deoxycytosine residue, with all residues connected by 3'->5' phosphodiester linkages.