CAS 6131-98-2 appears in our catalog under these names: Sodium Bitartrate Monohydrate, >95% (HPLC), L–Tartaric acid sodium hydrate, Sodium bitartrate monohydrate, SODIUM BITARTRATE MONOHYDRATE BIOULTRA,&, Sodium bitartrate monohydrate,purum p.a&. Offered by: TRC, GLPBio, Biosynth, Sigma-Aldrich, Chemat. Available pack sizes: 100g, 10g, 50g, 500g, 2kg, 250G, 1KG, 500 g.