Description

Dipotassium Methionate (CAS No. 6291-65-2) is a highly pure, dipotassium salt of methanedisulfonic acid, with the molecular formula CH₂K₂O₆S₂. This white crystalline powder is a versatile reagent widely used in organic synthesis, catalysis, and electrochemical applications due to its excellent solubility in water and stability under various conditions. With a purity of ≥99.0% (T), it ensures reliable performance in research and industrial processes. Its unique disulfonate structure makes it valuable as an intermediate in pharmaceuticals, agrochemicals, and specialty chemicals. Proper storage in a cool, dry place is recommended to maintain its integrity.

Properties

• CAS Number: 6291-65-2
• Complexity: 199
• IUPAC Name: dipotassium;methanedisulfonate
• InChI: InChI=1S/CH4O6S2.2K/c2-8(3,4)1-9(5,6)7;;/h1H2,(H,2,3,4)(H,5,6,7);;/q;2*+1/p-2
• InChI Key: JSXPCVUETJIQHE-UHFFFAOYSA-L
• Exact Mass: 251.8566931
• Molecular Formula: CH2K2O6S2
• Molecular Weight: 252.35
• SMILES: C(S(=O)(=O)[O-])S(=O)(=O)[O-].[K+].[K+]
• Topological: 131
• Monoisotopic Mass: 251.8566931
• Synonyms: Dipotassium methanedisulfonate, 6291-65-2, Dipotassium methanedisulphonate, Dipotassium methionate, 93NQD5PEW6, Methanedisulfonic acid, dipotassium salt, NSC-8541, METHIONIC ACID DIPOTASSIUM SALT, EINECS 228-543-0, NSC 8541, 228-543-0, Potassium methanedisulfonate, Methanedisulfonic acid dipotassium salt, dipotassium;methanedisulfonate, MFCD06411713, Potassiummethanedisulfonate, Methanedisulfonic acid,potassium salt (1:2), Potassium Methane Disulfonate, potassium methylenedisulphonate, SCHEMBL1162197, JSXPCVUETJIQHE-UHFFFAOYSA-L, DTXSID301335782, BCP12941, GAA29165, Methane Disulfonic Acid Potassium Salt, CS-0236424, Methanedisulfonic acid potassium salt (1:2), NS00080629, EN300-1709102, Methanedisulfonic acid dipotassium salt, >=99.0% (T)

Dipotassium Methionate serves as a key intermediate in organic synthesis, particularly in the preparation of sulfonate-based compounds. It is utilized in catalysis and buffer systems for electrochemical applications due to its ionic properties. Researchers also employ it in pharmaceutical development for modifying drug solubility and bioavailability. Its stability and high purity make it ideal for analytical and preparative chemistry workflows.

Safety and Hazards

GHS Hazard Statements

• H290 (31%): May be corrosive to metals [Warning Corrosive to Metals]
• H315 (64.8%): Causes skin irritation [Warning Skin corrosion/irritation]
• H319 (64.8%): Causes serious eye irritation [Warning Serious eye damage/eye irritation]
• H335 (64.8%): May cause respiratory irritation [Warning Specific target organ toxicity, single exposure; Respiratory tract irritation]

Precautionary Statements

• P234, P261, P264, P264+P265, P271, P280, P302+P352, P304+P340, P305+P351+P338, P319, P321, P332+P317, P337+P317, P362+P364, P390, P403+P233, P405, P406, and P501

Hazard Classes and Categories

• Met. Corr. 1 (31%)
• Skin Irrit. 2 (64.8%)
• Eye Irrit. 2 (64.8%)
• STOT SE 3 (64.8%)

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