SMILES: C[C@H]1C2=C(C[C@@H](O1)CC(=O)O)C(=O)C3=C(C2=O)C(=CC=C3)O
Description: The molecule is a pyranonaphthoquinone antibiotic from strain OS-3966 of Streptomyces rosa var. notoensis. It has a role as a bacterial metabolite. It is a benzoisochromanequinone, an organooxygen heterocyclic antibiotic, a member of p-quinones and a monocarboxylic acid.