Description

n-[5-[(2,4-Diaminophenyl)Azo]-2-[[4'-[[2-Hydroxy-3,6-Bis(Sodiosulfo)-1-Naphthalenyl]Azo]-3,3'-Dimethoxy[1,1'-Biphenyl]-4-Yl]Azo]Phenyl]Oxamidic Acid Sodium Salt is a high-purity, water-soluble azo dye intermediate of significant commercial importance. This compound is valued for its ability to impart deep, vibrant colors with excellent fastness properties in demanding applications. It is primarily utilized by manufacturers in the textile, ink, and specialty chemical industries seeking reliable and consistent performance in their coloration processes.

Application

• Textile Dyeing: A key intermediate for the synthesis of high-grade direct and reactive dyes for cotton, wool, and nylon, offering excellent wash and light fastness.
• Ink Manufacturing: Used in the production of high-performance inks for packaging, security printing, and digital textile printing.
• Leather Coloring: Employed in the formulation of dyes for leather finishing, providing rich, uniform coloration.
• Paper Staining: Suitable for specialty paper products requiring intense and stable coloration.
• Biological Staining: Potential use as a histological stain in laboratory settings due to its chromophoric structure.
• Research & Development: Serves as a critical building block in organic synthesis and the development of new functional dyes and pigments.

Basic Information

Product Name	n-[5-[(2,4-Diaminophenyl)Azo]-2-[[4'-[[2-Hydroxy-3,6-Bis(Sodiosulfo)-1-Naphthalenyl]Azo]-3,3'-Dimethoxy[1,1'-Biphenyl]-4-Yl]Azo]Phenyl]Oxamidic Acid Sodium Salt
CAS No.	7199-04-4
Molecular Formula	C46H32N8Na4O16S4
Molecular Weight	~1192.0 g/mol (Contact for details)
Synonyms	Direct Blue 71; C.I. 34140; Amanil Sky Blue 6B; Azo Blue 6B; Pontamine Sky Blue 6BX; Sodium 4-[(7-[[4-[[2,4-diaminophenyl)azo]phenyl]azo]-1-hydroxy-3,6-disulphonato-2-naphthyl)azo]-3,3'-dimethoxybiphenyl-4-yl)azo]-5-oxo-1-phenylpyrazole-4-carboxylate; 7199-04-4; Diazol Light Blue 3JL
EINECS	Contact for details

Quality Control

Our production of n-[5-[(2,4-Diaminophenyl)Azo]-2-[[4'-[[2-Hydroxy-3,6-Bis(Sodiosulfo)-1-Naphthalenyl]Azo]-3,3'-Dimethoxy[1,1'-Biphenyl]-4-Yl]Azo]Phenyl]Oxamidic Acid Sodium Salt adheres to stringent quality management systems. Every batch undergoes comprehensive analytical testing, including HPLC for purity and spectrophotometry for color strength, to ensure consistent performance and batch-to-batch reliability. Certificates of Analysis (COA) detailing purity, impurity profile, and physical specifications are available upon request.

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); keep the container tightly sealed to prevent absorption of atmospheric moisture.

Specification

Item	Specification
Appearance	Dark Blue to Bluish-Black Powder
Identification (IR)	Conforms to Standard
Assay (HPLC)	Min. 95%
Color Strength	100 ± 5% (vs. Standard)
Moisture Content	Max. 5.0%
Water Solubility	Completely Soluble
Ash Content (Sulfated)	Contact for details
Heavy Metals (as Pb)	Max. 20 ppm

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