Description

4-Amino-2,5-Dimethylbenzenesulfonic Acid Sodium Salt is a high-purity, water-soluble sodium salt derivative of a substituted benzenesulfonic acid. This compound serves as a critical intermediate and coupling agent in the synthesis of complex organic molecules, valued for its reactive amino and sulfonate functional groups. It is primarily required by manufacturers in the dyes and pigments, pharmaceutical, and agrochemical industries for producing azo dyes, active pharmaceutical ingredients (APIs), and specialty chemicals.

Application

• Dye and Pigment Intermediate: A key coupling component in the synthesis of azo dyes and pigments, contributing to color strength and fastness properties.
• Pharmaceutical Synthesis: Used as a building block in the manufacture of various active pharmaceutical ingredients (APIs) and diagnostic agents.
• Agrochemical Production: Serves as an intermediate in the synthesis of herbicides, fungicides, and other crop protection chemicals.
• Chemical Research & Development: Employed in organic synthesis and as a reagent for introducing sulfonate groups into target molecules.
• Specialty Surfactants: Can be utilized in the production of specialized anionic surfactants and dispersants.
• Photographic Chemicals: Potential use as a component in certain photographic developers and chemicals.

Basic Information

Product Name	4-Amino-2,5-Dimethylbenzenesulfonic Acid Sodium Salt
CAS No.	86677-21-6
Molecular Formula	C8H10NNaO3S
Molecular Weight	223.22 g/mol
Synonyms	2,5-Dimethyl-4-aminobenzenesulfonic acid sodium salt; Sodium 4-amino-2,5-dimethylbenzenesulfonate; 4-Amino-2,5-dimethylbenzenesulfonate sodium; 2,5-Dimethylaniline-4-sulfonic acid sodium salt; 4-Amino-2,5-xylenesulfonic acid sodium salt; 4-Amino-2,5-dimethylphenylsulfonic acid sodium salt; Benzenesulfonic acid, 4-amino-2,5-dimethyl-, sodium salt (1:1)
EINECS	Contact for details

Quality Control

Our 4-Amino-2,5-Dimethylbenzenesulfonic Acid Sodium Salt is manufactured under a strict quality management system. Every batch undergoes comprehensive analytical testing to ensure identity, purity, and consistency. We provide a Certificate of Analysis (COA) with each shipment, detailing key parameters such as assay, impurity profile, and physical characteristics. Our quality commitment ensures the material is suitable for demanding applications in regulated industries.

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); keep the container tightly sealed to prevent absorption of atmospheric moisture. Keep away from incompatible materials.

Specification

Item	Specification
Appearance	Off-white to light beige powder
Identification (IR)	Conforms
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 2.0%
Heavy Metals (as Pb)	≤ 20 ppm
Residue on Ignition (Sulfated Ash)	Contact for details
Related Substances (HPLC)	Contact for details

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