IUPAC: 1,8-dihydroxy-4,5-dinitro-9,10-dioxo-9,10-dihydroanthracene-2,7-disulfonic acid

SMILES: Oc1c2C(=O)c3c(O)c(cc(c3C(=O)c2c(cc1S(O)(=O)=O)[N+]([O-])=O)[N+]([O-])=O)S(O)(=O)=O