SMILES: C1=CC(=C2C(=C1)OC3=C(C=CC(=C3C2=O)O)[N+](=O)[O-])O
Description: The molecule is a member of the class of xanthones that is xanthen-9-one substituted at position 4 by a nitro group and at positions 1 and 8 by hydroxy groups. It has a role as a protein kinase inhibitor. It is a member of xanthones, a polyphenol and a C-nitro compound.