Description

4-Methoxyaniline-2,5-Disulfonic Acid is a key aromatic sulfonic acid derivative, serving as a versatile and high-value intermediate in advanced chemical synthesis. Its primary commercial value lies in its bifunctional structure, which provides reactive sites for the production of complex dyes, pigments, and specialty chemicals. This compound is essential for manufacturers in the dyestuff, pharmaceutical, and agrochemical sectors seeking to develop products with specific coloristic or biological properties.

Application

• Dye and Pigment Intermediate: A crucial building block for synthesizing azo dyes, acid dyes, and reactive dyes, particularly for textiles and leather.
• Pharmaceutical Synthesis: Used as an intermediate in the production of certain active pharmaceutical ingredients (APIs) and diagnostic agents.
• Agrochemical Manufacturing: Serves as a precursor for herbicides, fungicides, and other crop protection chemicals.
• Chemical Research & Development: Employed in organic synthesis for creating novel sulfonated compounds and fine chemicals.
• Photographic Chemicals: Can be used in the synthesis of certain color couplers and sensitizers.
• Liquid Crystal & Electronic Materials: Potential intermediate for advanced materials requiring specific sulfonic acid functionalities.

Basic Information

Product Name	4-Methoxyaniline-2,5-Disulfonic Acid
CAS No.	27327-48-6
Molecular Formula	C7H9NO7S2
Molecular Weight	283.28 g/mol
Synonyms	2,5-Disulfo-4-methoxyaniline; 4-Amino-2,5-dimethoxybenzenesulfonic Acid; Aniline-2,5-disulfonic acid, 4-methoxy-; 4-Methoxy-1,3-benzenedisulfonic acid, 6-amino-; 6-Amino-4-methoxy-1,3-benzenedisulfonic acid; 4-Methoxy-2,5-diaminobenzenesulfonic Acid (related); p-Methoxyaniline-2,5-disulfonic Acid
EINECS	Contact for details

Quality Control

Our 4-Methoxyaniline-2,5-Disulfonic Acid is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure it meets exacting specifications for industrial and fine chemical applications. A Certificate of Analysis (COA) detailing purity, assay, and impurity profiles is provided with every shipment to guarantee traceability and consistency.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept sealed to prevent absorption of atmospheric moisture. Keep away from strong acids and incompatible materials.

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%
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.