Potassium Metabisulfite (2:1) Price Not Available 10mg Potassium Metabisulfite (2:1) Supplier Page Catalog Number R029706 Molecular Formula K2S2O5 CAS# 16731-55-8 Purity ≥90% 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 Inchi Key RWPGFSMJFRPDDP-UHFFFAOYSA-L SMILES [O-]S(=O)S(=O)(=O)[O-].[K+].[K+] Size 10mg Supplier Page https://www.musechem.com/product/R029706.html