Description

Sodium 4-Methylbenzenesulfonate is an important organic sulfonate salt widely used as an intermediate and additive in various chemical syntheses. Its value lies in its role as a versatile anionic surfactant and phase-transfer catalyst, facilitating reactions in both aqueous and organic media. This compound is essential for manufacturers in the agrochemical, pharmaceutical, and specialty chemical industries seeking efficient process aids and intermediates.

Application

• As a key intermediate in the synthesis of dyes, pigments, and optical brighteners.
• As a phase-transfer catalyst (PTC) in organic synthesis, enhancing reaction rates and yields.
• As an anionic surfactant in detergent formulations and industrial cleaning products.
• As a dispersing agent in the production of polymers and resins.
• In the formulation of electroplating baths and other surface treatment chemicals.
• As a hydrotropic agent to increase the solubility of poorly soluble compounds in aqueous solutions.
• In pharmaceutical synthesis as a building block for active pharmaceutical ingredients (APIs).
• For research and development purposes in academic and industrial laboratories.

Basic Information

Product Name	Sodium 4-Methylbenzenesulfonate
CAS No.	71161-92-7
Molecular Formula	C7H7NaO3S
Molecular Weight	194.18 g/mol
Synonyms	Sodium p-Toluenesulfonate; 4-Methylbenzenesulfonic Acid Sodium Salt; p-Toluenesulfonic Acid Sodium Salt; Tosic Acid Sodium Salt; Sodium Tosylate; Toluenesulfonic Acid Sodium Salt; Sodium Toluenesulfonate; p-TSA Sodium Salt
EINECS	Contact for details

Quality Control

Our Sodium 4-Methylbenzenesulfonate is produced under a stringent quality management system. Each batch undergoes rigorous analytical testing to ensure it meets precise specifications for purity, identity, and performance. Certificates of Analysis (COA) documenting these 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). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed to prevent absorption of atmospheric moisture.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 2.0%
Heavy Metals (as Pb)	≤ 20 ppm
Residue on Ignition	≤ 0.1%
pH (5% solution)	6.0 - 8.0

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