Purity ≥95%. Sodium methanethiolate is used as a nucleophile in organic synthesis. Sodium methanethiolate is also being used as a reagent to synthesize thiol-based suberoylanilide hydroxamic acid (SAHA) analogues, compounds that act as potent histone deacetylase inhibitors. Synonyms: Methanethiol Sodium Salt (1:1); (Methylthio)sodium; Methyl Mercaptan Sodium Salt; Methylthiosodium; Sodium Methanesulfenate; Sodium Methanethiolate; Sodium Methyl Mercaptan; Sodium Methyl Sulfide; Sodium Methylmercaptide; Sodium Methylthiolate; Sodium Thiomethoxide; Sodium Thiomethylate CAS No: 5188-07-8 Molecular Formula: CHNaS Molecular Weight: 70.09 Appearance: Off-White to Light Brown Low Melting Solid Purity: ≥95% Melting Point: 47-49°C Solubility: Water