Description

3-Hydroxy-4-[[4-[[3,6-Bis(Sodiosulfo)-1-Naphthalenyl]Azo]-1-Naphthalenyl]Azo]Naphthalene-2,7-Disulfonic Acid Disodium Salt is a high-purity, water-soluble azo dye intermediate of significant commercial importance. This compound is valued for its ability to impart strong, vibrant colors and is a critical building block in the synthesis of complex dyes and pigments. It is primarily sought after by manufacturers in the textile, ink, and specialty chemical industries for producing high-performance colorants.

Application

• Primary Intermediate for Azo Dyes: Serves as a key precursor in the synthesis of high-value, complex azo dyes for textiles and leather.
• Textile Dyeing and Printing: Used in the production of dyes for coloring natural and synthetic fibers, offering excellent color fastness.
• Ink Manufacturing: A vital component in formulating pigments for industrial inks, including those used in packaging and printing.
• Specialty Pigments: Employed in the creation of pigments for plastics, coatings, and other advanced material applications.
• Research & Development: Utilized in chemical R&D for developing novel chromophores and studying dye chemistry.
• Analytical Reagents: Can be used as a standard or reagent in analytical chemistry for colorimetric assays and detection methods.

Basic Information

Product Name	3-Hydroxy-4-[[4-[[3,6-Bis(Sodiosulfo)-1-Naphthalenyl]Azo]-1-Naphthalenyl]Azo]Naphthalene-2,7-Disulfonic Acid Disodium Salt
CAS No.	6483-65-4
Molecular Formula	C30H16N4Na4O14S4
Molecular Weight	898.69 g/mol
Synonyms	Acid Red 186; C.I. 18810; 1-Naphthalenesulfonic acid, 3-hydroxy-4-((4-((3,6-disulfo-1-naphthalenyl)azo)-1-naphthalenyl)azo)-, sodium salt (1:4); Disodium 3-hydroxy-4-[(E)-[4-[(E)-(3,6-disulfonato-1-naphthyl)diazenyl]-1-naphthyl]diazenyl]naphthalene-2,7-disulfonate; Tetrasodium 3-hydroxy-4-[(E)-[4-[(E)-(3,6-disulfonato-1-naphthyl)diazenyl]-1-naphthyl]diazenyl]naphthalene-2,7-disulfonate; Azo Dye Intermediate 6483-65-4
EINECS	229-347-8

Quality Control

Our production of 3-Hydroxy-4-[[4-[[3,6-Bis(Sodiosulfo)-1-Naphthalenyl]Azo]-1-Naphthalenyl]Azo]Naphthalene-2,7-Disulfonic Acid Disodium Salt adheres to stringent quality management protocols. Every batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure consistency and compliance with customer specifications. A comprehensive Certificate of Analysis (COA) detailing assay, impurity profile, and physical properties is provided with each shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept sealed to prevent absorption of atmospheric moisture.

Specification

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

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