Description

2-Hydroxy-N,N,N-trimethylethanaminium 4-methylbenzenesulfonate (CAS No. 55357-38-5), also known as Choline tosylate, is a high-purity quaternary ammonium salt widely utilized in organic synthesis and pharmaceutical research. With the molecular formula C₁₂H₂₁NO₄S, this compound is characterized by its crystalline structure and excellent solubility in polar solvents. It serves as a versatile reagent, particularly in esterification and transesterification reactions, due to its mild and non-corrosive nature. Ideal for laboratory-scale applications, our product is rigorously tested to ensure >98% purity, making it suitable for sensitive chemical processes. Each batch is supplied with comprehensive analytical documentation, including HPLC and NMR data, to guarantee consistency and reliability for researchers.

Properties

• CAS Number: 55357-38-5
• Complexity: 240
• IUPAC Name: 2-hydroxyethyl(trimethyl)ammonium;4-methylbenzenesulfonate
• InChI: InChI=1S/C7H8O3S.C5H14NO/c1-6-2-4-7(5-3-6)11(8,9)10;1-6(2,3)4-5-7/h2-5H,1H3,(H,8,9,10);7H,4-5H2,1-3H3/q;+1/p-1
• InChI Key: DVGVMQVOCJNXNJ-UHFFFAOYSA-M
• Exact Mass: 275.11912932
• Molecular Formula: C12H21NO4S
• Molecular Weight: 275.37
• SMILES: CC1=CC=C(C=C1)S(=O)(=O)[O-].C[N+](C)(C)CCO
• Topological: 85.8
• Monoisotopic Mass: 275.11912932
• Synonyms: Choline tosylate, 55357-38-5, 2-Hydroxy-N,N,N-trimethylethanaminium 4-methylbenzenesulfonate, choline p-toluenesulfonate salt, MFCD00079051, 2-hydroxyethyl(trimethyl)azanium;4-methylbenzenesulfonate, choline p-toluenesulfonate, Choline Toluenesulfonate, SCHEMBL506429, FCA35738, AKOS015895068, Choline p-toluenesulfonate salt, ~99%, HY-W100403, BS-17581, SY046622, DB-052721, CS-0153045, D70941, (2-Hydroxyethyl)trimethylammonium p-toluenesulfonate, 4-Methylbenzenesulfonate 2-Hydroxy-N,N,N-trimethylethanaminium, 2-Hydroxy-N,N,N-trimethylethan-1-aminium 4-methylbenzenesulfonate

Application

Choline tosylate is extensively employed as a catalyst in organic synthesis, particularly for the formation of esters and lactones under mild conditions. It is also used in pharmaceutical research as a precursor for choline-based ionic liquids, which have applications in drug delivery systems. Additionally, this compound finds utility in the preparation of specialty surfactants and as a stabilizing agent in polymer chemistry.

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