potassium metabisulfite

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InChI :InChI=1/2K.H2O5S2/c;;1-6(2)7(3,4)5/h;;(H,1,2)(H,3,4,5)/q2*+1;/p-2
Std.InChI: InChI=1S/2K.H2O5S2/c;;1-6(2)7(3,4)5/h;;(H,1,2)(H,3,4,5)/q2*+1;/p-2
InChIKey :RWPGFSMJFRPDDP-NUQVWONBAF
Std.InChIKey: RWPGFSMJFRPDDP-UHFFFAOYSA-L
SMILES :[O-]S(=O)S(=O)(=O)[O-].[K+].[K+]
MDL: MFCD00167605