Description

Disodium 4-Amino-3-[(2,5-Dichlorophenyl)Azo]-5-Hydroxy-6-(1-Naphthylazo)Naphthalene-2,7-Disulphonate is a high-purity, synthetic azo dye intermediate of significant commercial importance. This compound is valued for its ability to impart deep, stable shades and is a critical precursor in the production of specialized colorants. It is primarily required by manufacturers in the textile, leather, and specialty ink industries for creating high-performance dyes and pigments.

Application

• Primary intermediate for the synthesis of high-grade azo dyes and pigments used in textile coloration.
• Key component in the manufacturing of leather dyes for achieving durable and vibrant finishes.
• Used in the formulation of specialty inks, including those for security printing and high-performance applications.
• Employed in the production of colorants for plastics and polymeric materials.
• Acts as a research chemical for developing novel chromophores in advanced material science.
• Potential use as a staining agent or colorimetric indicator in analytical chemistry and laboratory research.

Basic Information

Product Name	Disodium 4-Amino-3-[(2,5-Dichlorophenyl)Azo]-5-Hydroxy-6-(1-Naphthylazo)Naphthalene-2,7-Disulphonate
CAS No.	5850-34-0
Molecular Formula	C32H18Cl2N6Na2O8S2
Molecular Weight	795.53 g/mol
Synonyms	Disodium 4-Amino-3-[(2,5-dichlorophenyl)azo]-5-hydroxy-6-(1-naphthylazo)naphthalene-2,7-disulfonate; C.I. Acid Black 132; Acid Black 132; 2,7-Naphthalenedisulfonic acid, 4-amino-3-[(2,5-dichlorophenyl)azo]-5-hydroxy-6-[(1-naphthalenyl)azo]-, disodium salt; Azo Black 132; Disodium 4-Amino-3-(2,5-dichlorophenylazo)-5-hydroxy-6-(1-naphthylazo)naphthalene-2,7-disulphonate; 5850-34-0; C.I. 30025
EINECS	Contact for details

Quality Control

Our Disodium 4-Amino-3-[(2,5-Dichlorophenyl)Azo]-5-Hydroxy-6-(1-Naphthylazo)Naphthalene-2,7-Disulphonate is manufactured under a stringent quality management system. Every batch undergoes rigorous analytical testing to ensure high purity, consistent chromatic properties, and compliance with customer specifications. Comprehensive Certificates of Analysis (COA) detailing identity, assay, and impurity profiles are provided to guarantee supply chain transparency and product reliability.

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 performance and stability.

Specification

Item	Specification
Appearance	Dark blue to black powder or granules
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Moisture Content	≤ 5.0%
Ash Content (Sulfated)	≤ 20.0%
Water Solubility	Freely soluble
Heavy Metals (as Pb)	≤ 20 ppm

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