Description

5-[(8-Sulpho-2-Naphthyl)Azo]Salicylic Acid, Sodium Salt is a high-purity azo dye intermediate and analytical reagent known for its precise chromogenic properties. This compound is critical for applications requiring consistent color development and reliable complexometric analysis. It is primarily utilized by manufacturers in the dye and pigment industry, as well as by analytical laboratories for specific chemical detection and quantification methods.

Application

• Dye and Pigment Intermediate: A key precursor in the synthesis of specific azo dyes and colorants for textiles, inks, and coatings.
• Analytical Chemistry Reagent: Used as a chromogenic agent in complexometric titrations and for the spectrophotometric determination of various metal ions.
• Biological Staining: Potential application in histological and cytological staining procedures for microscopic analysis.
• Research & Development: Serves as a standard or reagent in chemical research involving azo compounds and colorimetric assays.
• Photographic Chemicals: Can be used in certain specialized photographic and imaging processes.

Basic Information

Product Name	5-[(8-Sulpho-2-Naphthyl)Azo]Salicylic Acid, Sodium Salt
CAS No.	83784-09-2
Molecular Formula	C₁₇H₁₁N₂NaO₆S
Molecular Weight	394.33 g/mol
Synonyms	5-[(8-Sulfo-2-naphthyl)azo]salicylic acid sodium salt; Mordant Blue 13; Alizarin Cyanine Green G; C.I. 43825; Acid Alizarin Cyanine Green G; Sodium 5-[(8-sulfonaphthalen-2-yl)diazenyl]-2-hydroxybenzoate; 2-Hydroxy-5-[(8-sulfo-2-naphthyl)azo]benzoic acid sodium salt
EINECS	Contact for details

Quality Control

Our 5-[(8-Sulpho-2-Naphthyl)Azo]Salicylic Acid, Sodium Salt is manufactured under a strict quality management system. Every batch undergoes comprehensive analytical testing to ensure identity, purity, and consistency. A Certificate of Analysis (COA) detailing specifications such as assay, absorbance, and impurity profile is provided and available upon request to support your quality assurance protocols.

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). Keep away from incompatible materials. The product is light-sensitive and should be stored away from direct light exposure.

Specification

Item	Specification
Appearance	Dark green to brown powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 5.0%
Absorbance (λ max)	Conforms
Heavy Metals	≤ 20 ppm

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