Description

Methanedisulfonic Acid (CAS No. 503-40-2) is a highly versatile and industrially significant organic sulfonic acid with the molecular formula CH₄O₆S₂. This compound, also known as Methionic Acid, features a methane core substituted with two sulfonic acid groups, making it a strong acid with excellent solubility in water and polar solvents. Its high acidity and stability under various conditions make it a valuable reagent in organic synthesis, catalysis, and chemical manufacturing processes.

Our Methanedisulfonic Acid is rigorously purified to ensure high chemical purity, making it suitable for demanding applications in pharmaceuticals, electroplating, and polymer chemistry. The product is available in various packaging options to meet both laboratory-scale and bulk industrial requirements. Each batch undergoes stringent quality control to guarantee consistency, performance, and safety.

Applications include its use as an acid catalyst, electrolyte additive, and intermediate in specialty chemical synthesis. Researchers and industrial scientists will appreciate its reliability and effectiveness in a wide range of chemical processes.

Properties

• CAS Number: 503-40-2
• Complexity: 225
• IUPAC Name: methanedisulfonic acid
• InChI: InChI=1S/CH4O6S2/c2-8(3,4)1-9(5,6)7/h1H2,(H,2,3,4)(H,5,6,7)
• InChI Key: OPUAWDUYWRUIIL-UHFFFAOYSA-N
• Exact Mass: 175.94493019
• Molecular Formula: CH4O6S2
• Molecular Weight: 176.17
• SMILES: C(S(=O)(=O)O)S(=O)(=O)O
• Topological: 126
• Monoisotopic Mass: 175.94493019
• Synonyms: METHANEDISULFONIC ACID, 503-40-2, Methionic acid, UNII-55N1VUX48W, 55N1VUX48W, methylenedisulfonic acid, EINECS 207-966-4, METHIONIC ACID [MI], DTXSID3060118, DTXCID2040814, 207-966-4, Methane disulfonic acid, Methanedisulphonic acid, METHANEDISULFONICACID, MFCD00041888, NSC8541, Methionsaure, UNII-93NQD5PEW6, SCHEMBL34406, SCHEMBL9474675, BBL103928, STL557738, AKOS005259705, AS-17428, Methionic Acid; Methylenedisulfonic Acid;, SY157937, DB-001041, NS00020520, EN300-180243, F16475, Q27261323

Application

Methanedisulfonic Acid is widely used as a strong acid catalyst in organic synthesis, particularly in esterification and condensation reactions. It serves as an electrolyte additive in electroplating and battery applications due to its high ionic conductivity. Additionally, it is employed in the preparation of specialty chemicals and polymers, where its dual sulfonic acid functionality enables unique reactivity.

Safety and Hazards

GHS Hazard Statements

• H314 (33.3%): Causes severe skin burns and eye damage [Danger Skin corrosion/irritation]
• H315 (52.4%): Causes skin irritation [Warning Skin corrosion/irritation]
• H318 (14.3%): Causes serious eye damage [Danger Serious eye damage/eye irritation]
• H319 (52.4%): Causes serious eye irritation [Warning Serious eye damage/eye irritation]
• H335 (52.4%): May cause respiratory irritation [Warning Specific target organ toxicity, single exposure; Respiratory tract irritation]
• H413 (14.3%): May cause long lasting harmful effects to aquatic life [Hazardous to the aquatic environment, long-term hazard]

Precautionary Statements

• P260, P261, P264, P264+P265, P271, P273, P280, P301+P330+P331, P302+P352, P302+P361+P354, P304+P340, P305+P351+P338, P305+P354+P338, P316, P317, P319, P321, P332+P317, P337+P317, P362+P364, P363, P403+P233, P405, and P501

Hazard Classes and Categories

• Skin Corr. 1B (33.3%)
• Skin Irrit. 2 (52.4%)
• Eye Dam. 1 (14.3%)
• Eye Irrit. 2 (52.4%)
• STOT SE 3 (52.4%)
• Aquatic Chronic 4 (14.3%)

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Disclaimer: Sold exclusively for laboratory research. Prohibited for commercial use, diagnostics, or human/animal applications. Buyers assume all compliance liability.