SMILES: CC1=CN(C(=O)NC1=O)[C@H]2C[C@@H]([C@H](O2)COP(=O)(O)O)OP(=O)(O)OC[C@@H]3[C@H](C[C@@H](O3)N4C=C(C(=NC4=O)N)C)O
Description: The molecule is a single-stranded DNA polynucleotide consisting of a repeating unit of thymidine and 5-methyldeoxycytidine residues, with all residues connected by 3'->5' phosphodiester linkages.