Description

p-Toluenesulfonic Acid Phenyl Ester is a versatile organic sulfonate ester widely used as a key intermediate and reagent in advanced chemical synthesis. This compound is valued for its role in facilitating specific coupling and esterification reactions, enabling the production of complex molecules. It is primarily sought by manufacturers in the pharmaceutical, agrochemical, and specialty chemical industries for research, development, and production-scale applications.

Application

• Pharmaceutical Intermediate: A crucial building block in the synthesis of active pharmaceutical ingredients (APIs) and other drug candidates.
• Agrochemical Synthesis: Used in the production of pesticides, herbicides, and plant growth regulators.
• Polymer Chemistry: Acts as a monomer or cross-linking agent in the manufacture of specialty polymers and resins.
• Dye and Pigment Manufacturing: Serves as an intermediate in the synthesis of organic dyes and colorants.
• Chemical Research & Development: Employed as a reagent in organic synthesis laboratories for novel compound creation.
• Liquid Crystal Materials: Used in the production of intermediates for electronic display components.

Basic Information

Product Name	p-Toluenesulfonic Acid Phenyl Ester
CAS No.	640-60-8
Molecular Formula	C13H12O3S
Molecular Weight	248.30 g/mol
Synonyms	Phenyl p-Toluenesulfonate; 4-Methylbenzenesulfonic Acid Phenyl Ester; Tosic Acid Phenyl Ester; Phenyl Tosylate; p-Tolylsulfonic Acid Phenyl Ester; Benzenesulfonic Acid, 4-methyl-, Phenyl Ester; PTS Phenyl Ester
EINECS	211-381-6

Quality Control

Our p-Toluenesulfonic Acid Phenyl Ester is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including assay, purity profiling, and identification, to ensure it meets the high standards required for industrial and research applications. A Certificate of Analysis (COA) detailing all specifications is provided with every shipment.

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). Due to its hygroscopic nature, the container must be kept tightly sealed to minimize exposure to atmospheric moisture.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	92 - 96 °C
Loss on Drying	≤ 0.5%

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