Description

Methyl p-Toluenesulfonate is a versatile organic sulfonate ester widely used as a key alkylating agent and synthetic intermediate. Its high reactivity makes it valuable for introducing the methyl group into various substrates under controlled conditions. This compound is essential for researchers and manufacturers in the pharmaceutical, agrochemical, and specialty chemical industries, where precise methylation is required for active ingredient synthesis and material science applications.

Application

• Pharmaceutical Intermediate: Used in the synthesis of active pharmaceutical ingredients (APIs) requiring methylation steps.
• Agrochemical Synthesis: Serves as a methylating agent in the production of herbicides, fungicides, and other crop protection chemicals.
• Fine Chemical Production: Employed in the manufacture of dyes, pigments, and other specialty organic compounds.
• Polymer Chemistry: Acts as a catalyst or co-monomer in specific polymerization reactions and resin formulations.
• Laboratory Research: A valuable reagent in organic synthesis for method development and scale-up studies.
• Material Science: Used in surface modification and the creation of functional materials.

Basic Information

Product Name	Methyl p-Toluenesulfonate
CAS No.	80-48-8
Molecular Formula	C8H10O3S
Molecular Weight	186.23 g/mol
Synonyms	Methyl Tosylate; Methyl 4-Methylbenzenesulfonate; p-Tolyl Methyl Sulfonate; 4-Toluenesulfonic Acid Methyl Ester; Methyl p-Tosylate; Tosic Acid Methyl Ester; MTS
EINECS	201-283-5

Quality Control

Our Methyl p-Toluenesulfonate is produced under stringent quality management systems. Each batch undergoes comprehensive analytical testing, including chromatographic purity analysis and identity confirmation, to ensure it meets the high standards required for industrial and research applications. A Certificate of Analysis (COA) detailing specific results is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). This product is hygroscopic (moisture-sensitive) and light-sensitive; containers must be kept tightly sealed to exclude moisture and light to maintain product integrity.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (HPLC)	≥ 98.0%
Water Content (KF)	≤ 0.5%
Related Substances (HPLC)	≤ 2.0% total

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