Description

8'-Amino-1'-Hydroxy-2,2'-Azonaphthalene-1,3',5,6'-Tetrasulfonic Acid, Tetrasodium Salt is a high-purity, water-soluble azo dye intermediate of significant industrial importance. Its multi-sulfonated structure provides excellent solubility and stability, making it a critical precursor for synthesizing specialized dyes and pigments. This compound is essential for manufacturers in the textile, ink, and specialty chemical sectors seeking to produce vivid, lightfast colors with enhanced application properties.

Application

• Primary Intermediate for Azo Dyes: Serves as a key building block in the synthesis of acid dyes, direct dyes, and reactive dyes for textiles like wool, silk, and nylon.
• Specialty Pigment Manufacturing: Used in the production of high-performance pigments for inks, coatings, and plastics requiring specific color strength and durability.
• Biological Staining Agent Precursor: Potential use in the synthesis of histochemical stains and indicators for laboratory and diagnostic applications.
• Research & Development: Employed in chemical research for developing novel chromophores, sensors, and functional materials.
• Analytical Chemistry: Can be utilized as a complexometric agent or a standard in analytical methodologies.

Basic Information

Product Name	8'-Amino-1'-Hydroxy-2,2'-Azonaphthalene-1,3',5,6'-Tetrasulfonic Acid, Tetrasodium Salt
CAS No.	62203-80-9
Molecular Formula	C₂₀H₁₂N₄Na₄O₁₆S₄
Molecular Weight	788.54 g/mol (approx.)
Synonyms	8-Amino-1-hydroxy-2,2'-azonaphthalene-1,3',5,6'-tetrasulfonic acid tetrasodium salt; C.I. 27290; Tetrasodium 8-amino-1-hydroxy-2,2'-azonaphthalene-1,3',5,6'-tetrasulfonate; Acid Black 52 (related dye class); 1-Naphthalenesulfonic acid, 8-amino-1-hydroxy-2,2'-azonaphthalene-1,3',5,6'-tetrasulfonic acid tetrasodium salt; Azo dye intermediate 62203-80-9
EINECS	Contact for details

Quality Control

Our 8'-Amino-1'-Hydroxy-2,2'-Azonaphthalene-1,3',5,6'-Tetrasulfonic Acid, Tetrasodium Salt is manufactured under a strict quality management system. Every batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation, to ensure it meets precise specifications for dye synthesis. A Certificate of Analysis (COA) detailing batch-specific results is provided to guarantee traceability and consistency for your production processes.

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 quality and handling.

Specification

Item	Specification
Appearance	Dark brown to purple powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Water Content	≤ 5.0%
Sulfated Ash	Contact for details
Heavy Metals (as Pb)	≤ 20 ppm
Solubility (in Water)	Clear solution

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