Description

4-Amino-2,5-Dimethoxybenzenesulfonic Acid is a specialized aromatic sulfonic acid derivative that serves as a critical intermediate in advanced organic synthesis. Its unique structure, featuring both amino and sulfonic acid groups on a dimethoxybenzene backbone, makes it a valuable building block for creating complex molecules with specific functional properties. This compound is essential for manufacturers and R&D teams in the pharmaceutical, agrochemical, and specialty dye industries seeking to develop new active ingredients or high-performance colorants.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of novel active pharmaceutical ingredients (APIs), particularly for compounds requiring a functionalized benzenesulfonic acid moiety.
• Agrochemical Synthesis: Used in the development of advanced herbicides, fungicides, and plant growth regulators where its structural features contribute to biological activity.
• Dye and Pigment Manufacturing: Serves as a crucial intermediate for producing azo dyes and other high-value, color-fast pigments for textiles and industrial applications.
• Chemical Research & Development: Employed as a versatile building block in organic chemistry research for constructing complex heterocyclic compounds and functional materials.
• Liquid Crystal & Electronic Materials: Potential use in the synthesis of organic semiconductors and liquid crystal display (LCD) components due to its electron-donating and accepting groups.
• Corrosion Inhibitor Formulation: Can be utilized in the development of specialty corrosion inhibitors for industrial water treatment systems.

Basic Information

Product Name	4-Amino-2,5-Dimethoxybenzenesulfonic Acid
CAS No.	42485-89-2
Molecular Formula	C8H11NO5S
Molecular Weight	233.24 g/mol
Synonyms	2,5-Dimethoxy-4-aminobenzenesulfonic Acid; 4-Amino-2,5-dimethoxybenzenesulfonic Acid; 1-Amino-2,5-dimethoxy-4-sulfobenzene; Benzenesulfonic acid, 4-amino-2,5-dimethoxy-; 4-Amino-2,5-dimethoxybenzene-1-sulfonic acid; 2,5-Dimethoxy-4-sulfoaniline; 4-Sulfo-2,5-dimethoxyaniline
EINECS	Contact for details

Quality Control

Our 4-Amino-2,5-Dimethoxybenzenesulfonic Acid is manufactured under a strict quality management system. Each batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation, to ensure it meets precise customer specifications and consistent high-quality standards. Certificates of Analysis (COA) documenting all critical parameters are 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 (moisture-sensitive) nature, the container must be kept tightly sealed to prevent absorption of atmospheric moisture, which can affect product quality and stability.

Specification

Item	Specification
Appearance	Off-white to light brown crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 2.0%
Residue on Ignition (Sulfated Ash)	≤ 0.5%
Heavy Metals (as Pb)	≤ 20 ppm
Related Substances (HPLC)	Total impurities ≤ 2.0%
Solubility	Soluble in alkaline aqueous solutions

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