Description

4-[[4-[(2,4-Dinitrophenyl)Amino]Phenyl]Azo]Benzenesulfonic Acid Sodium Salt is a high-purity azo dye intermediate and analytical reagent essential for precise color development and chemical synthesis. Its value lies in its consistent reactivity and purity, which are critical for ensuring reliable results in sensitive applications and high-quality end products. This compound is primarily needed by manufacturers in the dye and pigment industry, research laboratories for biochemical assays, and quality control sectors requiring specific chromogenic agents.

Application

• Key intermediate for the synthesis of specific azo dyes and pigments.
• Chromogenic reagent in analytical chemistry and biochemical assays.
• Used in the formulation of specialized inks and colorants.
• Research and development of new colorimetric detection methods.
• Potential use as a staining agent in histological studies.
• Quality control standard in dye manufacturing processes.

Basic Information

Product Name	4-[[4-[(2,4-Dinitrophenyl)Amino]Phenyl]Azo]Benzenesulfonic Acid Sodium Salt
CAS No.	3410-50-2
Molecular Formula	C18H12N5NaO7S
Molecular Weight	465.37 g/mol
Synonyms	Acid Orange 63; C.I. 22870; Sodium 4-[(4-[(2,4-dinitrophenyl)amino]phenyl)azo]benzenesulfonate; 2,4-Dinitro-4'-(4-sulfophenylazo)diphenylamine Sodium Salt; 4-[(4-[(2,4-Dinitrophenyl)amino]phenyl)azo]benzenesulfonic acid sodium salt; Dinitro Amino Azo Benzene Sulfonate Sodium Salt; Azo Dye Intermediate 3410-50-2; 2,4-DNPH Azo Dye Sodium Salt
EINECS	222-300-5

Quality Control

Our 4-[[4-[(2,4-Dinitrophenyl)Amino]Phenyl]Azo]Benzenesulfonic Acid Sodium Salt is produced under a strict quality management system to ensure batch-to-batch consistency and high purity. Each lot undergoes comprehensive analytical testing, including HPLC for assay and impurity profiling. A Certificate of Analysis (COA) detailing all test results is provided with every shipment to guarantee compliance with your specifications and industry standards.

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 (moisture-sensitive) nature, the container must be kept tightly sealed after opening to prevent absorption of atmospheric moisture.

Specification

Item	Specification
Appearance	Orange to brownish-red powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 5.0%
Heavy Metals (as Pb)	≤ 20 ppm
Residual Solvents (GC)	Meets ICH guidelines

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