Description

4-Hydroxyphenyldimethylsulfonium Methyl Sulfate is a specialized organosulfur salt with significant utility as a key intermediate in advanced organic synthesis. Its value lies in its role as a versatile reagent for introducing functional groups and as a precursor in the development of high-performance materials. This compound is primarily needed by research institutions and industrial manufacturers in the pharmaceutical, agrochemical, and specialty chemical sectors for developing novel compounds and fine chemicals.

Application

• Pharmaceutical Intermediate: Serves as a critical building block in the synthesis of active pharmaceutical ingredients (APIs) and novel drug candidates.
• Agrochemical Synthesis: Used in the production of advanced pesticides, herbicides, and plant growth regulators.
• Photoinitiator & Polymer Chemistry: Acts as a key component in photoacid generators (PAGs) for photoresists and advanced polymer curing systems.
• Organic Synthesis Reagent: Employed as a methylating or sulfonium transfer agent in complex organic transformations.
• Material Science Research: Utilized in the development of ionic liquids, conductive polymers, and other functional materials.
• Cross-coupling Reactions: Functions as a precursor or catalyst component in palladium-catalyzed and other cross-coupling reactions.

Basic Information

Product Name	4-Hydroxyphenyldimethylsulfonium Methyl Sulfate
CAS No.	32279-04-2
Molecular Formula	C10H16O5S2
Molecular Weight	280.36 g/mol
Synonyms	Dimethyl(4-hydroxyphenyl)sulfonium Methyl Sulfate; p-Hydroxyphenyldimethylsulfonium Methylsulfate; (4-Hydroxyphenyl)dimethylsulfonium Methyl Sulfate; Sulfonium, (4-hydroxyphenyl)dimethyl-, methyl sulfate; Photoacid Generator Precursor; PAG Intermediate; Hydroxyphenyl Sulfonium Salt
EINECS	Contact for details

Quality Control

Our 4-Hydroxyphenyldimethylsulfonium Methyl Sulfate is manufactured under strict quality management systems. Every batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation via IR and NMR spectroscopy, to ensure it meets precise customer specifications. Certificates of Analysis (COA) documenting all critical parameters are available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed and under dry conditions to prevent degradation.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Water Content (KF)	≤ 1.0%
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 10 ppm

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