Description

4-Hydroxy-6-(2-Sulfoethylamino)Naphthalene-2-Sulfonic Acid is a high-purity, functionalized naphthalene sulfonic acid derivative designed for advanced chemical synthesis. This compound is valued for its dual sulfonic acid groups and reactive amino-hydroxy functionality, making it a versatile intermediate for creating water-soluble dyes, pigments, and specialty polymers. It is primarily sought by manufacturers in the dyestuff, textile chemical, and advanced material sectors for developing products with enhanced solubility and chromophoric properties.

Application

• Key Intermediate for Reactive Dyes: Serves as a crucial building block in the synthesis of high-performance, water-soluble reactive dyes for textile coloring.
• Pigment Manufacturing: Used in the production of organic pigments and lake pigments, where its sulfonic groups improve dispersion and stability.
• Specialty Polymer Synthesis: Acts as a monomer or functional additive for creating sulfonated polymers with specific ion-exchange or hydrophilic properties.
• Analytical Chemistry Reagent: Employed as a chelating agent or a chromogenic reagent in specific analytical and diagnostic applications.
• Photographic Chemicals: Can be utilized in the formulation of certain photographic chemicals and sensitizers.
• Research & Development: A valuable compound for academic and industrial R&D in organic synthesis and material science.

Basic Information

Product Name	4-Hydroxy-6-(2-Sulfoethylamino)Naphthalene-2-Sulfonic Acid
CAS No.	259685-50-2
Molecular Formula	C₁₂H₁₃NO₇S₂
Molecular Weight	347.36 g/mol
Synonyms	6-[(2-Sulfoethyl)amino]-4-hydroxy-2-naphthalenesulfonic Acid; 4-Hydroxy-6-(2-sulfoethylamino)-2-naphthalenesulfonic Acid; 2-Naphthalenesulfonic acid, 4-hydroxy-6-[(2-sulfoethyl)amino]-; 6-Amino-4-hydroxy-2-naphthalenesulfonic acid, N-(2-sulfoethyl)-; Acid Black 234 intermediate; Reactive dye intermediate
EINECS	Contact for details

Quality Control

Our production of 4-Hydroxy-6-(2-Sulfoethylamino)Naphthalene-2-Sulfonic Acid adheres to stringent quality management protocols. Every batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation, to ensure it meets precise customer specifications and industry standards. A Certificate of Analysis (COA) detailing all test results is provided with each shipment and is available upon request.

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 handling properties.

Specification

Item	Specification
Appearance	Off-white to light brown powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 5.0%
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.