Description

3-[(4-Nitrophenyl)Azo]-5-[(5-Sulpho-1-Naphthyl)Azo]Salicylic Acid, Sodium Salt is a high-purity azo dye intermediate and analytical reagent. This compound is valued for its precise chromophoric properties and consistent performance in demanding chemical processes. It is primarily utilized by manufacturers in the dye and pigment industry, as well as by research laboratories for specialized analytical applications.

Application

• Key intermediate for the synthesis of high-value azo dyes and pigments, particularly for textiles and specialty coatings.
• Used as a chromogenic reagent in analytical chemistry for the detection and quantification of specific metal ions.
• Potential application in the formulation of indicator solutions for pH and complexometric titrations.
• Research and development of novel functional dyes for non-textile applications, such as in optics or sensors.
• Manufacturing of colorants for inks, plastics, and other industrial materials requiring specific shade and stability.

Basic Information

Product Name	3-[(4-Nitrophenyl)Azo]-5-[(5-Sulpho-1-Naphthyl)Azo]Salicylic Acid, Sodium Salt
CAS No.	93940-53-5
Molecular Formula	C23H14N5NaO7S
Molecular Weight	519.44 g/mol
Synonyms	Acid Red 299 (C.I. 18130); Sodium 3-[(4-nitrophenyl)azo]-5-[(5-sulfo-1-naphthyl)azo]salicylate; 5-[(5-Sulfo-1-naphthalenyl)azo]-3-[(4-nitrophenyl)azo]-2-hydroxybenzoic acid sodium salt; 3-[(p-Nitrophenyl)azo]-5-[(5-sulfo-1-naphthyl)azo]salicylic acid sodium salt; Mordant Red 17 (related class); Azo dye intermediate 93940-53-5; Salicylic acid azo dye derivative
EINECS	Contact for details

Quality Control

Our production of 3-[(4-Nitrophenyl)Azo]-5-[(5-Sulpho-1-Naphthyl)Azo]Salicylic Acid, Sodium Salt adheres to stringent quality protocols to ensure batch-to-batch consistency and high purity. The material is characterized and tested against established in-house specifications. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with each shipment to support your quality assurance processes.

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 nature, the container must be kept tightly sealed to minimize exposure to atmospheric moisture.

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	Contact for details
Heavy Metals (as Pb)	≤ 20 ppm
Solubility (1% in Water)	Clear, red to orange solution

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