You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
I need a molecule that meets the following conditions: Thermal decomposition is initiated by locally heating to 190 °c, and flame spreads rapidly through the mass. The molecule has Odorless. Please represent the molecule in SMILES.
user
O=[Cr](=O)([O-])O[Cr](=O)(=O)[O-].[NH4+].[NH4+]
assistant