Description

Dimethyl sulfite (CAS No. 616-42-2) is a high-purity organic compound with the molecular formula C₂H₆O₃S, widely utilized in research and industrial applications. This colorless to pale yellow liquid is characterized by its distinctive sulfurous odor and excellent solvency properties. As a dimethyl ester of sulfurous acid, it serves as a versatile reagent in organic synthesis, particularly in the formation of sulfonates and as a sulfonating agent. Our product is rigorously tested to ensure optimal purity (>98%) and consistency, making it ideal for sensitive chemical processes. Packaged under inert gas to prevent degradation, this compound is available in quantities ranging from laboratory-scale vials to bulk drums, ensuring suitability for both academic research and large-scale production.

Properties

• CAS Number: 616-42-2
• Complexity: 46.8
• IUPAC Name: dimethyl sulfite
• InChI: InChI=1S/C2H6O3S/c1-4-6(3)5-2/h1-2H3
• InChI Key: BDUPRNVPXOHWIL-UHFFFAOYSA-N
• Exact Mass: 110.00376522
• Molecular Formula: C2H6O3S
• Molecular Weight: 110.13
• SMILES: COS(=O)OC
• Topological: 54.7
• Monoisotopic Mass: 110.00376522
• Physical Description: Clear colorless liquid;
• Synonyms: Dimethyl sulfite, Methyl sulfite, Sulfurous acid, dimethyl ester, Dimethyl sulphite, Dimethylsulfite, Dimethoxy sulfoxide, Dimethylsulfit, (CH3O)2SO, Sulphurous acid dimethyl ester, Dimethyl ester of sulfurous acid, EINECS 210-481-0, UNII-9JFA40S66P, NSC 41902, TL 159, BRN 1700256, 9JFA40S66P, AI3-12179, NSC-41902, METHOXYSULFINYLOXYMETHANE, DTXSID3060665, CHEBI:48858, 4-01-00-01250 (Beilstein Handbook Reference), DTXCID2043082, bduprnvpxohwil-uhfffaoysa-n, inchi=1/c2h6o3s/c1-4-6(3)5-2/h1-2h, 616-42-2, Dimethyl sulfite, 99%, sulfurous acid dimethyl ester, MFCD00008415, Dimethylsulphite, SCHEMBL419268, Dimethyl sulfite, >=99.5%, NSC41902, AKOS015852449, BS-43825, SY051743, DB-220398, CS-0230894, D0264, NS00042205, E78691, EN300-106065, A833343, Q418463

Application

Dimethyl sulfite is primarily employed as a key intermediate in organic synthesis, facilitating the introduction of sulfonate groups into target molecules. It finds application in the production of specialty chemicals, including pharmaceuticals and agrochemicals, where sulfonation is a critical step. Additionally, its solvency properties make it useful in polymer chemistry and as a reaction medium for certain catalytic processes. Researchers also utilize it in electrochemistry and battery electrolyte formulations due to its ability to modify ionic conductivity.

Safety and Hazards

GHS Hazard Statements

• H226 (100%): Flammable liquid and vapor [Warning Flammable liquids]
• H315 (100%): Causes skin irritation [Warning Skin corrosion/irritation]
• H319 (100%): Causes serious eye irritation [Warning Serious eye damage/eye irritation]
• H335 (97.5%): May cause respiratory irritation [Warning Specific target organ toxicity, single exposure; Respiratory tract irritation]

Precautionary Statements

• P210, P233, P240, P241, P242, P243, P261, P264, P264+P265, P271, P280, P302+P352, P303+P361+P353, P304+P340, P305+P351+P338, P319, P321, P332+P317, P337+P317, P362+P364, P370+P378, P403+P233, P403+P235, P405, and P501

Hazard Classes and Categories

• Flam. Liq. 3 (100%)
• Skin Irrit. 2 (100%)
• Eye Irrit. 2 (100%)
• STOT SE 3 (97.5%)

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