Description

4'-[[2,4-Bis(Phenylamino)Phenyl]Azo][1,1'-Azobisnaphthalene]-3,6-Disulfonic Acid Disodium Salt is a high-purity, water-soluble azo dye intermediate and specialty chemical. This compound is valued for its strong chromophore and sulfonic acid groups, which provide excellent solubility and binding properties in aqueous systems. It is primarily utilized in the production of advanced dyes, pigments, and as a functional component in analytical chemistry and material science research.

Application

• Key intermediate for the synthesis of high-performance azo dyes and pigments for textiles and inks.
• Functional component in the development of colorimetric sensors and indicators for analytical chemistry.
• Potential use as a staining agent or probe in biological and materials research.
• Specialty additive for light-sensitive coatings and imaging materials.
• Research chemical for studying azo compound reactivity and photochemistry.
• Precursor for creating metal-complex dyes with enhanced stability.

Basic Information

Product Name	4'-[[2,4-Bis(Phenylamino)Phenyl]Azo][1,1'-Azobisnaphthalene]-3,6-Disulfonic Acid Disodium Salt
CAS No.	6505-94-8
Molecular Formula	C40H28N6Na2O6S2
Molecular Weight	822.79 g/mol
Synonyms	Acid Red 404; C.I. 18075; 4'-[[2,4-Bis(anilino)phenyl]azo][1,1'-azonaphthalene]-3,6-disulfonic acid disodium salt; 1,1'-Azobisnaphthalene-3,6-disulfonic acid, 4'-[2,4-bis(phenylamino)phenyl]azo]-, disodium salt; Disodium 4'-[[2,4-bis(phenylamino)phenyl]azo][1,1'-azonaphthalene]-3,6-disulfonate; 6505-94-8; Azo dye intermediate 6505-94-8
EINECS	Contact for details

Quality Control

Our production of 4'-[[2,4-Bis(Phenylamino)Phenyl]Azo][1,1'-Azobisnaphthalene]-3,6-Disulfonic Acid Disodium Salt adheres to stringent quality management protocols. Every batch is analyzed to ensure high purity and consistency, with specifications meeting the demands of industrial and research applications. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with each shipment to guarantee traceability and compliance.

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 sealed to minimize exposure to atmospheric moisture. Keep away from incompatible materials.

Specification

Item	Specification
Appearance	Dark red to brown powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 5.0%
Sulfated Ash	≤ 20.0%
Heavy Metals (as Pb)	≤ 20 ppm
Water Solubility	Freely soluble

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