Description

Disodium 3-[[4-[(7-Amino-1-Hydroxy-3-Sulphonato-2-Naphthyl)Azo]-1-Naphthyl]Azo]Salicylate is a high-purity, water-soluble azo dye intermediate and analytical reagent. This compound is valued for its excellent chromophoric properties and ability to form stable complexes with metal ions. It is primarily required by manufacturers in the specialty dyes and pigments, analytical chemistry, and research sectors for precise colorant synthesis and as a chelating agent.

Application

• Primary Intermediate for Azo Dyes: Key starting material for synthesizing specific red and brown shades of acid dyes and reactive dyes for textiles.
• Metal Complex Dye Production: Used in the manufacture of pre-metallized dyes, particularly for leather and polyamide fibers, due to its chelating structure.
• Analytical Reagent: Employed in laboratory settings as a colorimetric indicator or chelating agent in complexometric titrations and metal ion detection.
• Research & Development: Serves as a critical compound in chemical research for developing new chromophores and studying azo coupling reactions.
• Specialty Ink Formulation: Potential use in formulating high-performance inks where specific color fastness and solubility are required.

Basic Information

Product Name	Disodium 3-[[4-[(7-Amino-1-Hydroxy-3-Sulphonato-2-Naphthyl)Azo]-1-Naphthyl]Azo]Salicylate
CAS No.	10330-04-8
Molecular Formula	C27H17N5Na2O8S
Molecular Weight	617.50 g/mol
Synonyms	Acid Red 299; C.I. 18130; Disodium 5-[(4-[(7-Amino-1-hydroxy-3-sulphonato-2-naphthyl)azo]-1-naphthyl)azo]salicylate; 7-Amino-1-hydroxy-3-sulfo-2-naphthylazo-1-naphthylazosalicylic Acid Disodium Salt; 3-[[4-[(7-Amino-1-hydroxy-3-sulfo-2-naphthyl)azo]-1-naphthyl]azo]salicylic Acid Disodium Salt; Azo Dye Intermediate AR-299; Salicylic Acid Azo Derivative Disodium Salt
EINECS	Contact for details

Quality Control

Our production of Disodium 3-[[4-[(7-Amino-1-Hydroxy-3-Sulphonato-2-Naphthyl)Azo]-1-Naphthyl]Azo]Salicylate adheres to a strict quality management system. Every batch undergoes rigorous analytical testing, including HPLC for purity and spectrophotometric analysis for color strength consistency, ensuring it meets precise customer specifications. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles 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 room temperature (15-25°C). This material is light-sensitive (store away from light) and hygroscopic (moisture-sensitive). Keep the container tightly sealed when not in use to minimize exposure to atmospheric moisture.

Specification

Item	Specification
Appearance	Dark red to brown powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Water Content	≤ 5.0%
Solubility (in Water)	Clear, complete solution
Heavy Metals (as Pb)	≤ 20 ppm
pH (1% Solution)	6.0 - 8.0

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