potassium stannate

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IUPAC Name :dipotassium;dioxido(oxo)tin
InChI :InChI=1/2K.3O.Sn/q2*+1;;2*-1;
Std.InChI: InChI=1S/2K.3O.Sn/q2*+1;;2*-1;
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InChIKey :OFSILIKCRSNPAL-NUQVWONBAD
Std.InChIKey: IOUCSUBTZWXKTA-UHFFFAOYSA-N
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SMILES :[K+].[K+].[O-][Sn]([O-])=O