Description

1-Methylimidazolium p-Toluenesulfonate is a high-purity ionic liquid salt, also known as [HMIM][OTs]. This compound is valued for its dual functionality as a versatile solvent and an efficient catalyst in specialized organic synthesis. It is primarily sought after by researchers and process chemists in the pharmaceutical, fine chemical, and advanced materials sectors for developing novel synthetic pathways and green chemistry applications.

Application

• Acid Catalyst in Organic Synthesis: Acts as a recyclable Brønsted acid catalyst for esterification, alkylation, and condensation reactions.
• Green Solvent Medium: Serves as an alternative, non-volatile ionic liquid solvent for reactions requiring high polarity and thermal stability.
• Pharmaceutical Intermediate: Used in the synthesis of active pharmaceutical ingredients (APIs) and complex heterocyclic compounds.
• Polymerization Catalyst/Additive: Facilitates the synthesis of specific polymers and can act as a property-modifying additive.
• Electrolyte Component: Investigated for use in electrochemical applications, including batteries and sensors, due to its ionic conductivity.
• Research & Development: A key reagent in academic and industrial R&D for exploring new catalytic systems and material science.

Basic Information

Product Name	1-Methylimidazolium p-Toluenesulfonate
CAS No.	63458-90-2
Molecular Formula	C11H14N2O3S
Molecular Weight	254.31 g/mol
Synonyms	1-Methylimidazolium tosylate; [HMIM][OTs]; 1-Methyl-1H-imidazol-3-ium 4-methylbenzenesulfonate; N-Methylimidazolium p-toluenesulfonate; HMIM OTf (common abbreviation); HMIM Tosylate; 1-Methylimidazole p-toluenesulfonate salt
EINECS	Contact for details

Quality Control

Our 1-Methylimidazolium p-Toluenesulfonate is manufactured under strict quality management protocols. Each batch undergoes rigorous analytical testing, including HPLC, NMR, and Karl Fischer titration, to ensure high chemical purity and consistency. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with every shipment to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). This product is hygroscopic (moisture-sensitive). Keep the container tightly sealed under an inert atmosphere (e.g., nitrogen or argon) after opening to prevent moisture absorption and degradation.

Specification

Item	Specification
Appearance	White to off-white crystalline powder or solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Water Content (KF)	≤ 1.0%
Residue on Ignition	≤ 0.1%
Heavy Metals (as Pb)	≤ 20 ppm

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.