Description

2-Amino-5-Methyl-1,4-Benzenedisulfonic Acid is a key aromatic sulfonic acid derivative, serving as a versatile and critical intermediate in advanced organic synthesis. Its value lies in its dual sulfonic acid groups and amino functionality, which make it an essential building block for creating complex, high-performance molecules. This compound is primarily needed by manufacturers in the dye and pigment, pharmaceutical, and specialty chemical industries for synthesizing azo dyes, pharmaceutical actives, and liquid crystal materials.

Application

• Dye & Pigment Intermediate: A crucial precursor in the synthesis of azo dyes and pigments, contributing to color strength and fastness properties.
• Pharmaceutical Synthesis: Used as a building block for active pharmaceutical ingredients (APIs), particularly in compounds requiring sulfonamide or aniline moieties.
• Liquid Crystal Materials: Acts as an intermediate in the production of specialty chemicals for electronic displays.
• Chemical Research & Development: Serves as a valuable reagent in organic synthesis for introducing sulfonic acid groups into target molecules.
• Corrosion Inhibitor Formulation: Utilized in the development of specialty chemicals for industrial water treatment and metal surface protection.
• Photographic Chemicals: Employed in the synthesis of certain chemicals used in photographic development processes.

Basic Information

Product Name	2-Amino-5-Methyl-1,4-Benzenedisulfonic Acid
CAS No.	26585-57-9
Molecular Formula	C7H9NO6S2
Molecular Weight	267.28 g/mol
Synonyms	4-Amino-6-methyl-1,3-benzenedisulfonic Acid; 2-Amino-5-methylbenzene-1,4-disulfonic Acid; 6-Methyl-4-aminobenzene-1,3-disulfonic Acid; 4-Amino-6-methyl-m-benzenedisulfonic Acid; 2-Amino-5-methyl-p-benzenedisulfonic Acid; 5-Methyl-2-aminobenzene-1,4-disulfonic Acid; 4-Amino-6-methylbenzene-1,3-disulfonic Acid
EINECS	Contact for details

Quality Control

Our 2-Amino-5-Methyl-1,4-Benzenedisulfonic Acid is produced under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure it meets precise specifications for identity, purity, and impurity profiles. 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 place 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, which can affect product quality.

Specification

Item	Specification
Appearance	Off-white to light brown crystalline powder
Identification (IR)	Conforms
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 2.0%
Sulfated Ash	≤ 0.5%
Heavy Metals (as Pb)	≤ 20 ppm

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