Description

4-Amino-3-[[4-[(4-Amino-1-naphthyl)azo]phenyl]azo]-5-hydroxy-6-(phenylazo)naphthalene-2,7-disulphonic acid, sodium salt is a high-purity, complex azo dye intermediate of significant commercial importance. Its intricate molecular structure, featuring multiple azo and amino groups, makes it a critical precursor for synthesizing specialized dyes and pigments. This product is essential for manufacturers in the textile, ink, and specialty chemical industries seeking to produce high-value colorants with specific fastness and hue properties.

Application

• Primary Intermediate for Azo Dyes: Serves as a key building block in the synthesis of high-performance, polyazo direct dyes and acid dyes for textiles like wool, silk, and nylon.
• Specialty Pigment Manufacturing: Used in the production of complex organic pigments for applications requiring high color strength and stability.
• Ink Formulations: Employed in the creation of specialized inks for packaging, security printing, and other high-value printing applications.
• Research & Development: A valuable compound for chemical R&D in organic synthesis, dye chemistry, and material science studies.
• Functional Dye Synthesis: Potential use as a precursor for dyes with specific functional properties, such as those used in biological staining or as sensors.

Basic Information

Product Name	4-Amino-3-[[4-[(4-Amino-1-naphthyl)azo]phenyl]azo]-5-hydroxy-6-(phenylazo)naphthalene-2,7-disulphonic acid, sodium salt
CAS No.	83270-28-4
Molecular Formula	C32H22N8O7S2•xNa
Molecular Weight	Contact for details
Synonyms	Acid Black 107 (C.I. 15711); Sodium 4-amino-3-{[4-[(4-amino-1-naphthyl)azo]phenyl]azo}-5-hydroxy-6-(phenylazo)naphthalene-2,7-disulphonate; 4-Amino-3-{[4-[(4-amino-1-naphthyl)azo]phenyl]azo}-5-hydroxy-6-(phenylazo)naphthalene-2,7-disulfonic acid sodium salt; C.I. Acid Black 107; Polyazo black dye intermediate; Azo dye intermediate 83270-28-4
EINECS	Contact for details

Quality Control

Our production of this advanced dye intermediate adheres to strict quality management protocols to ensure batch-to-batch consistency and high purity. Each lot undergoes comprehensive analysis, including HPLC for purity and identity confirmation and spectrophotometric methods for strength assessment. A detailed Certificate of Analysis (COA) documenting all critical parameters is provided with every shipment to support your quality assurance processes.

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 each use to prevent degradation from atmospheric moisture.

Specification

Item	Specification
Appearance	Dark powder or crystalline solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95% (Typical 97-99%)
Loss on Drying	≤ 5.0%
Sulfated Ash	Contact for details
Heavy Metals (as Pb)	≤ 20 ppm
Solubility (Water)	Soluble

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