Description

Disodium 3-[[4'-[[6-Amino-1-Hydroxy-3-Sulphonato-2-Naphthyl]Azo]-3,3'-Dimethoxy[1,1'-Biphenyl]-4-Yl]Azo]-4-Hydroxynaphthalene-1-Sulphonate is a high-purity, water-soluble azo dye intermediate of significant industrial importance. This compound is valued for its role in synthesizing complex, high-performance dyes and pigments that offer excellent color fastness and stability. It is primarily sought after by manufacturers in the textile, ink, and specialty chemical industries for producing vivid and durable colorants.

Application

This advanced chemical intermediate serves as a critical building block in several high-value manufacturing processes. Its primary and related applications include:

• Textile Dye Synthesis: A key precursor for manufacturing high-grade, wash-fast azo dyes used in coloring cotton, wool, and synthetic fibers.
• Inkjet and Printing Ink Production: Used in formulating specialized inks that require precise color characteristics and stability.
• Pigment Manufacturing: Integral in the synthesis of organic pigments for plastics, coatings, and paints.
• Research & Development: Serves as a standard or intermediate in chemical research for developing new chromophores and functional dyes.
• Specialty Chemical Synthesis: Employed in the production of dyes for leather, paper, and other industrial materials.

Basic Information

Product Name	Disodium 3-[[4'-[[6-Amino-1-Hydroxy-3-Sulphonato-2-Naphthyl]Azo]-3,3'-Dimethoxy[1,1'-Biphenyl]-4-Yl]Azo]-4-Hydroxynaphthalene-1-Sulphonate
CAS No.	3818-60-8
Molecular Formula	C34H24N6Na2O11S2
Molecular Weight	802.69 g/mol
Synonyms	Direct Blue 1; C.I. 24410; Amanil Sky Blue FF; Benzo Sky Blue; Chloramine Sky Blue FF; Diphenyl Blue 2B; Direct Sky Blue 5B; Sirius Supra Blue BRR; Sodium 3,3'-((3,3'-dimethoxy(1,1'-biphenyl)-4,4'-diyl)bis(azo))bis(4-hydroxy-6-amino-2-naphthalenesulfonate); 3,3'-((3,3'-Dimethoxy[1,1'-biphenyl]-4,4'-diyl)bis(azo))bis(6-amino-4-hydroxy-2-naphthalenesulfonic acid) disodium salt
EINECS	223-291-0

Quality Control

Our production of Disodium 3-[[4'-[[6-Amino-1-Hydroxy-3-Sulphonato-2-Naphthyl]Azo]-3,3'-Dimethoxy[1,1'-Biphenyl]-4-Yl]Azo]-4-Hydroxynaphthalene-1-Sulphonate adheres to stringent quality management protocols. Every batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation, to ensure it meets exacting specifications for dye intermediate applications. Certificates of Analysis (COA) documenting purity, heavy metal content, and other critical parameters are available upon request 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). This material is light-sensitive (store away from light) and hygroscopic (moisture-sensitive); therefore, containers must be kept tightly sealed when not in use to prevent moisture absorption and degradation.

Specification

Item	Specification
Appearance	Dark blue to bluish-black 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.