Description

Phenyltrimethylammonium Methosulfate is a high-purity quaternary ammonium salt with significant utility as a phase-transfer catalyst and chemical intermediate. Its value lies in its ability to facilitate reactions between reagents in immiscible phases, enhancing yield and efficiency in organic synthesis. This compound is essential for manufacturers and R&D laboratories in the pharmaceutical, agrochemical, and specialty chemical sectors seeking to optimize complex synthetic processes. Phenyltrimethylammonium Methosulfate CAS NO 28001-58-3 is a key reagent for driving innovation in chemical production.

Application

• As a phase-transfer catalyst (PTC) in alkylation, esterification, and polymerization reactions.
• Chemical intermediate in the synthesis of pharmaceutical actives and fine chemicals.
• Catalyst for the preparation of specialty polymers and resins.
• Reagent in organic synthesis laboratories for research and development.
• Used in the manufacture of agrochemicals, including pesticides and herbicides.
• Potential application in the synthesis of ionic liquids and other advanced materials.

Basic Information

Product Name	Phenyltrimethylammonium Methosulfate
CAS No.	28001-58-3
Molecular Formula	C10H17NO3S
Molecular Weight	231.31 g/mol
Synonyms	PTMA Methosulfate; N,N,N-Trimethylanilinium Methyl Sulfate; Phenyltrimethylammonium Methyl Sulfate; Trimethylphenylammonium Methosulfate; Aniline, N,N,N-trimethyl-, methyl sulfate; Benzyltrimethylammonium Methosulfate (common misnomer); TMPA Methosulfate; 28001-58-3
EINECS	Contact for details

Quality Control

Our Phenyltrimethylammonium Methosulfate is produced under a strict quality management system to ensure batch-to-batch consistency and high purity. Each lot is analyzed to confirm identity, potency, and impurity profiles. Certificates of Analysis (COA) documenting comprehensive testing results are available upon request to support your quality assurance and regulatory compliance 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); containers must be kept tightly sealed to prevent absorption of atmospheric moisture, which can affect product quality and performance.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Water Content (KF)	≤ 2.0%
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.