Description

7-Amino-7'-[[4-[[4-[(2,4-Diaminophenyl)Azo]Phenyl]Amino]Phenyl]Azo]-1,8'-Dihydroxy[2,2'-Azobisnaphthalene]-3,6'-Disulfonic Acid Disodium Salt is a high-purity, complex azo dye intermediate characterized by its disulfonic acid sodium salt form, which enhances its solubility and stability for industrial synthesis. This compound is engineered to deliver exceptional color strength and structural integrity as a critical building block for advanced dyes and pigments. It is primarily sought after by manufacturers in the textile, ink, and specialty chemical industries requiring precise and reliable intermediates for high-performance colorant production.

Application

• Primary Intermediate for Azo Dyes: A key precursor in the synthesis of high-grade, complex azo dyes for textiles, leather, and paper.
• Specialty Ink Formulations: Used in the production of pigments for inks requiring specific lightfastness and color properties, including security and high-performance printing inks.
• Functional Dye Synthesis: Serves as a building block for dyes used in biological staining, analytical chemistry, and as sensitizers in photographic applications.
• Research & Development: Employed in chemical R&D for developing novel chromophores and studying structure-property relationships in dye chemistry.
• Polymer Colorants: Can be incorporated into the synthesis of dyes for coloring plastics and synthetic fibers.

Basic Information

Product Name	7-Amino-7'-[[4-[[4-[(2,4-Diaminophenyl)Azo]Phenyl]Amino]Phenyl]Azo]-1,8'-Dihydroxy[2,2'-Azobisnaphthalene]-3,6'-Disulfonic Acid Disodium Salt
CAS No.	6826-47-7
Molecular Formula	C44H30N10Na2O10S2
Molecular Weight	984.88 g/mol
Synonyms	Acid Black 107; C.I. 17725; Disodium 7-amino-1,8-dihydroxy-7'-[4-[4-[(2,4-diaminophenyl)azo]phenylamino]phenylazo]-3,6'-disulfonato-2,2'-azonaphthalene; 2,2'-Azobis[7-amino-1,8-dihydroxy-3,6'-disulfonaphthalene] disodium salt derivative; Azo Black 107; 7-Amino-1,8-dihydroxy-7'-[p-[p-[(2,4-diaminophenyl)azo]anilino]phenylazo]-3,6'-disulfonato-2,2'-azonaphthalene disodium salt
EINECS	Contact for details

Quality Control

Our production of this azo dye intermediate adheres to stringent quality control protocols to ensure batch-to-batch consistency and purity. Each lot is analyzed using advanced techniques including HPLC and spectrophotometry to verify critical parameters such as assay, impurity profile, and color value. A comprehensive Certificate of Analysis (COA) detailing all test results is provided with every shipment to support your quality assurance and regulatory compliance needs.

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 tightly sealed to prevent moisture absorption, which can affect product stability and performance.

Specification

Item	Specification
Appearance	Dark blue to black powder or crystalline solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Moisture (KF Titration)	≤ 5.0%
Sulfated Ash	≤ 20.0%
Heavy Metals (as Pb)	≤ 20 ppm
Solubility (in Water)	Freely soluble, clear solution

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