Description

2,4-Dihydroxy-4'-Nitroazobenzene-5-Carboxylic Acid Sodium Salt is a high-purity azo dye intermediate and analytical reagent. This compound is valued for its precise chromophoric properties and reactivity, making it essential for producing specialized colorants and chemical indicators. It is primarily used by manufacturers in the dye and pigment, analytical chemistry, and research and development sectors.

Application

• Dye and Pigment Intermediate: A key precursor in the synthesis of specialized azo dyes for textiles, inks, and coatings.
• Analytical Reagent: Used as a colorimetric indicator or complexing agent in laboratory analysis and testing procedures.
• Research & Development: Serves as a building block in organic synthesis for novel chemical entities in academic and industrial research.
• Photographic Chemicals: Potential application in the formulation of light-sensitive layers for specialized photographic materials.
• pH Indicator: Can be utilized in the development of pH-sensitive dyes and sensors due to its structural properties.

Basic Information

Item	Detail
Product Name	2,4-Dihydroxy-4'-Nitroazobenzene-5-Carboxylic Acid Sodium Salt
CAS No.	6409-04-7
Molecular Formula	C13H8N3NaO6
Molecular Weight	325.21 g/mol
Synonyms	5-Carboxy-2,4-dihydroxy-4'-nitroazobenzene Sodium Salt; Sodium 5-(2,4-dihydroxy-4'-nitrophenylazo)benzoate; 4'-Nitro-2,4-dihydroxyazobenzene-5-carboxylic Acid Sodium Salt; C.I. 18965; Acid Orange 74 Sodium Salt; Mordant Orange 74 Sodium Salt; 2,4-Dihydroxy-4'-nitroazobenzene-5-carboxylate Sodium
EINECS	Contact for details

Quality Control

Our 2,4-Dihydroxy-4'-Nitroazobenzene-5-Carboxylic Acid Sodium Salt is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing to ensure high purity and consistent performance. Comprehensive Certificates of Analysis (COA) detailing identity, purity, and impurity profiles 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, and well-ventilated area at room temperature (15-25°C). This material is hygroscopic (moisture-sensitive); ensure containers are kept tightly sealed to prevent absorption of atmospheric moisture.

Specification

Item	Specification
Appearance	Orange to red-brown powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 5.0%
Residue on Ignition	≤ 1.0%
Heavy Metals (as Pb)	≤ 20 ppm

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