Description

5-Hydroxy-6-[(2-Hydroxy-4,6-Dinitrophenyl)Azo]-1-Naphthalenesulfonic Acid Sodium Salt is a high-purity azo dye intermediate and analytical reagent, valued for its precise chromophoric properties and consistent performance in demanding formulations. This compound is essential for industries requiring reliable and specific colorant synthesis or chemical detection methods. It is primarily utilized by manufacturers in the dye and pigment, analytical chemistry, and specialty chemical sectors.

Application

• Dye and Pigment Intermediate: A key precursor for synthesizing specific azo dyes and pigments, particularly for applications requiring yellow to orange hues.
• Analytical Reagent: Used in laboratory settings as a chromogenic agent for the detection and quantification of specific metal ions or in complexometric titrations.
• Textile Colorant Synthesis: Employed in the production of colorants for dyeing natural and synthetic fibers.
• Research & Development: Serves as a standard or building block in chemical research for developing new colored materials or sensors.
• Ink Formulation: A component in the manufacture of specialized industrial or printing inks where specific color properties are required.
• pH Indicator Component: Can be utilized in the formulation of pH-sensitive indicators due to its azo-based structure.

Basic Information

Item	Detail
Product Name	5-Hydroxy-6-[(2-Hydroxy-4,6-Dinitrophenyl)Azo]-1-Naphthalenesulfonic Acid Sodium Salt
CAS No.	72829-18-6
Molecular Formula	C16H9N4O9SNa
Molecular Weight	456.32 g/mol
Synonyms	Acid Orange 74; C.I. 18745; 1-Naphthalenesulfonic acid, 5-hydroxy-6-[(2-hydroxy-4,6-dinitrophenyl)azo]-, sodium salt; Sodium 5-hydroxy-6-[(2-hydroxy-4,6-dinitrophenyl)azo]naphthalene-1-sulfonate; D&C Orange No. 17 (related); Mordant Orange 1 (related); Azo dye intermediate 72829-18-6
EINECS	Contact for details

Quality Control

Our production of 5-Hydroxy-6-[(2-Hydroxy-4,6-Dinitrophenyl)Azo]-1-Naphthalenesulfonic Acid Sodium Salt adheres to stringent quality management protocols. Every batch undergoes comprehensive analytical testing to ensure identity, purity, and consistency meet exacting standards. Certificates of Analysis (COA) detailing specific results for each parameter are provided and can be tailored to meet individual customer requirements.

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 heat sources and incompatible materials. Due to its light-sensitive nature, containers should be opaque or stored in dark conditions.

Specification

Item	Specification
Appearance	Orange to reddish-brown powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 2.0%
Sulfated Ash	Contact for details
Heavy Metals (as Pb)	≤ 20 ppm
Solubility	Soluble in water, aqueous alkali; slightly soluble in organic solvents

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