CAS 149-44-0 appears in our catalog under these names: Hydroxymethanesulfinic acid sodium salt hydrate, tech 85%, c, SODIUM HYDROXYMETHANESULFINATE DIHYDRATE, Sodium hydroxymethanesulfinate, 97%,RG, 97%,RG, Sodium hydroxymethanesulphinate, 97%,RG. Offered by: Thermo Scientific (Alfa Aesar), Sigma-Aldrich, Chemat, Fluorochem. Available pack sizes: 2500g, 500g, 1KG, 250G, 5KG, 100g, 20kg.