Description

Trimethyloxosulphonium Chloride (CAS No. 5034-06-0) is a highly versatile organosulfur compound with the molecular formula C₃H₉ClOS. This white crystalline solid is widely utilized in organic synthesis, particularly as a methylating agent and a precursor for ylide formation in the Corey-Chaykovsky reaction. With a purity of ≥98%, our product is rigorously tested to ensure consistency and reliability for research applications. Its hygroscopic nature necessitates storage in a cool, dry environment under inert conditions. Ideal for pharmaceutical, agrochemical, and material science research, Trimethyloxosulphonium Chloride offers exceptional reactivity for nucleophilic methylation and cyclopropanation reactions.

Properties

• CAS Number: 5034-06-0
• Complexity: 53
• IUPAC Name: [keto(dimethyl)sulfuraniumyl]methane;chloride
• InChI: InChI=1S/C3H9OS.ClH/c1-5(2,3)4;/h1-3H3;1H/q+1;/p-1
• InChI Key: KQYWHJICYXXDSQ-UHFFFAOYSA-M
• Exact Mass: 128.0062638
• Molecular Formula: C3H9ClOS
• Molecular Weight: 128.62
• SMILES: C[S+](=O)(C)C.[Cl-]
• Topological: 18.1
• Monoisotopic Mass: 128.0062638
• Synonyms: Trimethyloxosulphonium chloride, 225-724-6, Trimethylsulfoxonium chloride, 5034-06-0, Trimethyloxosulfonium chloride, Sulfoxonium, trimethyl-, chloride, NSC 221182, Trimethylsulfonium chloride oxide, trimethyl sulfoxonium chloride, Sulfonium, trimethyl-, chloride, S-oxide, MFCD00011898, NSC-221182, EINECS 225-724-6, Trimethylsulphoxonium chloride, Sulfoxonium, chloride, KV8UUA9PBU, Trimethyloxosulphoniumchloride, SCHEMBL50536, Sulfonium, chloride, S-oxide, BCP33135, AC8170, NSC221182, AKOS015898768, FT10681, SY039178, trimethyl(oxo)-lambda-sulfanylium chloride, DB-015062, CS-0097768, NS00081671, T3794, WLN: OS1&1&1 &G &2/10, Trimethyl sulfoxide Chloride;Trimethyloxosulphonium chloride

Application

Trimethyloxosulphonium Chloride is extensively used as a methylating agent in organic synthesis, enabling the introduction of methyl groups into various substrates. It serves as a key reagent in the Corey-Chaykovsky reaction for the formation of epoxides, cyclopropanes, and other strained ring systems. Researchers also employ it as a precursor for sulfoxonium ylides, which participate in diverse carbon-carbon bond-forming reactions. Its applications extend to the synthesis of pharmaceuticals, fine chemicals, and specialty materials.

Safety and Hazards

GHS Hazard Statements

• H315 (88%): Causes skin irritation [Warning Skin corrosion/irritation]
• H319 (88%): Causes serious eye irritation [Warning Serious eye damage/eye irritation]
• H335 (86%): May cause respiratory irritation [Warning Specific target organ toxicity, single exposure; Respiratory tract irritation]

Precautionary Statements

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

Hazard Classes and Categories

• Skin Irrit. 2 (88%)
• Eye Irrit. 2 (88%)
• STOT SE 3 (86%)

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