IUPAC: 2-[(1R,3S)-8-[(1R,3S)-3-(carboxymethyl)-6,9-dihydroxy-1-methyl-5,10-dioxo-1H,3H,4H,5H,10H-naphtho[2,3-c]pyran-8-yl]-6,9-dihydroxy-1-methyl-5,10-dioxo-1H,3H,4H,5H,10H-naphtho[2,3-c]pyran-3-yl]acetic acid

SMILES: C[C@H]1O[C@H](CC(O)=O)CC2=C1C(=O)c1c(O)c(cc(O)c1C2=O)-c1cc(O)c2C(=O)C3=C([C@@H](C)O[C@H](CC(O)=O)C3)C(=O)c2c1O