Description

2-Hydroxy-3-[[4-[(2-Hydroxy-1-Naphthalenyl)Azo]-1-Naphthalenyl]Azo]-5-Sodiosulfobenzoic Acid Sodium Salt is a high-purity, water-soluble azo dye intermediate and analytical reagent. This compound is valued for its strong chromophoric properties and precise chemical structure, making it essential for producing vivid and stable colorants. It is primarily required by manufacturers in the dye and pigment industry, as well as by research laboratories for specialized chemical synthesis and colorimetric analysis.

Application

• Primary Intermediate for Azo Dyes: A key building block in the synthesis of high-performance, water-soluble red and orange azo dyes for textiles, leather, and paper.
• Pigment Manufacturing: Used in the production of lake pigments and other colorants requiring good lightfastness and thermal stability.
• Analytical Chemistry Reagent: Employed as a complexometric indicator or a chromogenic agent in specific spectrophotometric and titrimetric analyses.
• Research & Development: Serves as a precise chemical standard and a starting material for novel chromophore development in academic and industrial R&D settings.
• Specialty Inks: A potential component in the formulation of specialty inks where specific color properties and solubility are required.

Basic Information

Product Name	2-Hydroxy-3-[[4-[(2-Hydroxy-1-Naphthalenyl)Azo]-1-Naphthalenyl]Azo]-5-Sodiosulfobenzoic Acid Sodium Salt
CAS No.	6406-62-8
Molecular Formula	C27H16N4Na2O7S
Molecular Weight	594.48 g/mol
Synonyms	Acid Red 299; C.I. 18130; Benzoic acid, 2-hydroxy-3-[[4-[(2-hydroxy-1-naphthalenyl)azo]-1-naphthalenyl]azo]-5-sulfo-, disodium salt; Disodium 2-hydroxy-3-((4-((2-hydroxynaphthalen-1-yl)diazenyl)naphthalen-1-yl)diazenyl)-5-sulfobenzoate; 2-Hydroxy-3,3'-azonaphthalene-5-sulfobenzoic Acid Disodium Salt; 3-[(4-[(2-Hydroxy-1-naphthyl)azo]-1-naphthyl]azo]-2-hydroxy-5-sulfobenzoic Acid Disodium Salt
EINECS	229-077-2

Quality Control

Our production of 2-Hydroxy-3-[[4-[(2-Hydroxy-1-Naphthalenyl)Azo]-1-Naphthalenyl]Azo]-5-Sodiosulfobenzoic Acid Sodium Salt adheres to a strict quality management system. Every batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure it meets precise specifications for dye intermediate applications. Certificates of Analysis (COA) documenting batch-specific results are available upon request to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at controlled room temperature (15-25°C). Keep away from incompatible materials and sources of heat. The product is light-sensitive (store away from light).

Specification

Item	Specification
Appearance	Reddish-brown to dark brown powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 5.0%
Sulfated Ash	≤ 20.0%
Heavy Metals (as Pb)	≤ 20 ppm
Solubility (in Water)	Clear, complete solution

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