SMILES: [O-]S(=O)(=O)[O-].[O-]S(=O)(=O)[O-].[O-]S(=O)(=O)[O-].[Cr+3].[Cr+3]
Description: The molecule is a compound of chromium and sulfate in which the ratio of chromium (in the +3 oxidation state) to sulfate is 2:3 It contains a chromium(3+).