Description

3-[2-Methyl-4-(1-Hydroxy-3-Sulfo-6-Amino-2-Naphtylazo)-5-Methoxyphenylazo]-1,5-Naphthalenedisulfonic Acid is a high-purity, polyazo naphthalene derivative valued for its strong chromophoric properties and excellent water solubility due to multiple sulfonic acid groups. This compound is essential for producing vivid and stable colorants, particularly in applications demanding high lightfastness and chemical resistance. It is primarily sought by manufacturers in the textile dyeing, specialty ink formulation, and advanced material research sectors.

Application

• Textile Dyeing: A key intermediate for synthesizing high-performance, wash-fast azo dyes for natural and synthetic fibers like cotton, wool, and nylon.
• Specialty Inks: Used in the formulation of industrial inks, including those for jet printing and security markings, where color intensity and stability are critical.
• Paper Coloring: Employed in the production of high-grade colored papers and decorative laminates.
• Biological Staining: Potential use as a staining agent in histology and microscopy due to its specific chromogenic structure.
• Functional Material Research: Serves as a building block in the development of organic semiconductors, sensors, and light-harvesting materials.
• Leather Finishing: Used in dye formulations for leather goods to achieve deep, uniform colors.

Basic Information

Item	Detail
Product Name	3-[2-Methyl-4-(1-Hydroxy-3-Sulfo-6-Amino-2-Naphtylazo)-5-Methoxyphenylazo]-1,5-Naphthalenedisulfonic Acid
CAS No.	62106-11-0
Molecular Formula	C28H22N6O11S3
Molecular Weight	738.70 g/mol
Synonyms	Acid Black 210; C.I. 300310; 1,5-Naphthalenedisulfonic acid, 3-[2-methyl-4-[(1-hydroxy-6-amino-3-sulfo-2-naphthalenyl)azo]-5-methoxyphenyl]azo]-; C.I. Acid Black 210; Black 210 (Acid); 3-[2-Methyl-4-[(1-hydroxy-6-amino-3-sulfo-2-naphthyl)azo]-5-methoxyphenyl]azo]-1,5-naphthalenedisulfonic acid; Acid Leather Black 210
EINECS	Contact for details

Quality Control

Our 3-[2-Methyl-4-(1-Hydroxy-3-Sulfo-6-Amino-2-Naphtylazo)-5-Methoxyphenylazo]-1,5-Naphthalenedisulfonic Acid is manufactured under a strict quality management system. Every batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure it meets precise customer specifications and industry standards. A comprehensive Certificate of Analysis (COA) detailing purity, impurity profile, and physical properties is provided with each shipment.

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, which can affect product performance and stability.

Specification

Item	Specification
Appearance	Dark blue to black powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Water Content (KF)	≤ 5.0%
Sulfated Ash	≤ 1.0%
Heavy Metals (as Pb)	≤ 20 ppm
Solubility (in Water)	Freely soluble

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