Description

2,5-Dimethylbenzenesulfonic Acid Sodium Salt Monohydrate is a versatile organic sulfonate salt widely used as an intermediate and catalyst in specialty chemical synthesis. Its value lies in its consistent purity and performance as a phase-transfer catalyst and surfactant precursor. This product is essential for manufacturers in the pharmaceutical, agrochemical, and dye industries seeking reliable raw materials for complex organic reactions.

Application

• Pharmaceutical Intermediate: A key building block in the synthesis of active pharmaceutical ingredients (APIs) and fine chemicals.
• Phase-Transfer Catalyst (PTC): Facilitates reactions between reactants in immiscible phases, commonly used in alkylation and esterification processes.
• Surfactant & Detergent Precursor: Serves as a raw material for producing specialized anionic surfactants and industrial cleaning agents.
• Dye & Pigment Manufacturing: Used as an intermediate in the production of sulfonated dyes and colorants.
• Agrochemical Synthesis: Employed in the manufacture of herbicides, fungicides, and other crop protection agents.
• Chemical Research & Development: A valuable reagent for organic synthesis and process development in R&D laboratories.
• Electroplating Additive: Functions as a brightening agent or additive in specific electroplating bath formulations.
• Polymerization Aid: Can act as an emulsifier or catalyst in certain polymerization reactions.

Basic Information

Product Name	2,5-Dimethylbenzenesulfonic Acid Sodium Salt Monohydrate
CAS No.	827-19-0
Molecular Formula	C8H9NaO3S · H2O
Molecular Weight	226.21 g/mol (Monohydrate)
Synonyms	Sodium 2,5-Dimethylbenzenesulfonate Monohydrate; 2,5-Xylenesulfonic Acid Sodium Salt Monohydrate; p-Xylene-2-sulfonic Acid Sodium Salt Monohydrate; Sodium Salt of 2,5-Dimethylbenzene Sulfonic Acid Monohydrate; 2,5-DMBSS; 2,5-Dimethylphenylsulfonic Acid Sodium Salt; 2,5-Xylenesulfonate Sodium Salt Hydrate
EINECS	Contact for details

Quality Control

Our 2,5-Dimethylbenzenesulfonic Acid Sodium Salt Monohydrate is produced under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure it meets high-purity standards suitable for industrial and research applications. A comprehensive Certificate of Analysis (COA) detailing purity, assay, and impurity profiles is provided with every shipment to guarantee traceability and batch-to-batch consistency.

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). This product is hygroscopic (moisture-sensitive); the container must be kept tightly sealed to prevent absorption of atmospheric moisture, which can affect quality and handling properties.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Water Content (KF)	6.0 - 8.5% (Theoretical for monohydrate: ~7.96%)
Loss on Drying	Contact for details
Heavy Metals (as Pb)	≤ 20 ppm
Residue on Ignition (Sulfated Ash)	Contact for details
pH (5% solution)	Contact for details

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