Description

p-Tolyl Methanesulfonate is a high-purity organic synthesis intermediate, specifically a methanesulfonate ester derivative of p-cresol. This compound is valued for its role as a versatile alkylating or protecting group reagent in complex multi-step syntheses, offering excellent reactivity and selectivity. It is primarily utilized by research institutions and industrial manufacturers in the pharmaceutical, agrochemical, and specialty chemical sectors for developing active ingredients and advanced materials.

Application

• Pharmaceutical Intermediate: Key building block in the synthesis of active pharmaceutical ingredients (APIs), particularly for introducing the p-tolyl moiety.
• Agrochemical Synthesis: Used in the production of herbicides, fungicides, and other crop protection agents.
• Organic Synthesis Reagent: Acts as an alkylating agent in nucleophilic substitution reactions or as a protecting group for alcohols and phenols in complex molecule construction.
• Material Science Research: Employed in the development of monomers, ligands, and other precursors for advanced polymers and functional materials.
• Chemical Research & Development: Serves as a standard or starting material in method development and exploratory chemistry within R&D laboratories.

Basic Information

Product Name	p-Tolyl Methanesulfonate
CAS No.	17177-63-8
Molecular Formula	C8H10O3S
Molecular Weight	186.23 g/mol
Synonyms	4-Methylphenyl methanesulfonate; p-Cresyl methanesulfonate; Tosyl methanesulfonate (common); 4-Tolyl methanesulfonate; Methanesulfonic acid 4-methylphenyl ester; 1-Methyl-4-(methylsulfonyloxy)benzene; p-Toluenesulfonate methyl ester (related); Mesylate of p-cresol
EINECS	Contact for details

Quality Control

Our p-Tolyl Methanesulfonate is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including identity confirmation by FT-IR and NMR, and purity determination by HPLC or GC to ensure it meets exacting standards for research and industrial use. A Certificate of Analysis (COA) detailing all test results is provided with every shipment to guarantee traceability and compliance with your specifications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at controlled room temperature (typically 15-25°C). Keep away from heat, sparks, and open flame. For long-term storage under inert atmosphere, please contact our technical team for specific recommendations.

Specification

Item	Specification
Appearance	White to off-white crystalline solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 0.5%
Related Substances (HPLC)	Individual impurity ≤ 0.5%

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