Description

4,8-Bis[[2,4-Diamino-5-[[4-[6-(6-Methyl-7-Sodiosulfobenzothiazol-2-Yl)Benzothiazol-2-Yl]Phenyl]Azo]Phenyl]Azo]Naphthalene-2,6-Disulfonic Acid Disodium Salt is a high-purity, complex disazo dye intermediate with significant commercial importance. Its value lies in its role as a critical precursor for synthesizing specialized dyes and pigments, offering excellent color strength and stability. This compound is essential for manufacturers in the textile, ink, and specialty coatings industries seeking to produce high-performance colorants.

Application

• Primary Intermediate for Disazo Dyes: Serves as a key building block in the synthesis of high-grade, complex disazo dyes for demanding applications.
• Textile Dyeing and Printing: Used in the production of dyes for coloring natural and synthetic fibers, particularly where deep, vibrant shades and good fastness properties are required.
• Ink Manufacturing: Employed in the formulation of specialty inks, including those for packaging, security printing, and high-resolution digital printing.
• Industrial Pigments: A precursor for pigments used in plastics, paints, and coatings that require specific colorimetric properties and durability.
• Research & Development: Utilized in chemical research for developing novel chromophores and studying structure-property relationships in dye chemistry.
• Analytical Reagents: Can be used in the development of colorimetric indicators and sensors due to its distinct chromophoric system.

Basic Information

Item	Details
Product Name	4,8-Bis[[2,4-Diamino-5-[[4-[6-(6-Methyl-7-Sodiosulfobenzothiazol-2-Yl)Benzothiazol-2-Yl]Phenyl]Azo]Phenyl]Azo]Naphthalene-2,6-Disulfonic Acid Disodium Salt
CAS No.	6854-82-6
Molecular Formula	C68H42N16Na2O12S6
Molecular Weight	1513.44 g/mol
Synonyms	Acid Black 210; C.I. 300310; Disodium 4,8-bis[[2,4-diamino-5-[[4-[6-(6-methyl-7-sodiosulfobenzothiazol-2-yl)benzothiazol-2-yl]phenyl]azo]phenyl]azo]naphthalene-2,6-disulfonate; 4,8-Bis[(2,4-diamino-5-{[4-(6-methyl-7-sulfonato-2-benzothiazolyl)phenyl]azo}phenyl)azo]naphthalene-2,6-disulfonic acid disodium salt; Direct Black 210 (related class); Complex disazo dye intermediate; Benzothiazole azo dye salt.
EINECS	Contact for details

Quality Control

Our production of 4,8-Bis[[2,4-Diamino-5-[[4-[6-(6-Methyl-7-Sodiosulfobenzothiazol-2-Yl)Benzothiazol-2-Yl]Phenyl]Azo]Phenyl]Azo]Naphthalene-2,6-Disulfonic Acid Disodium Salt adheres to stringent quality management protocols. Every batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation, to ensure consistency and meet precise customer specifications. Certificates of Analysis (COA) documenting key parameters such as assay, impurity profile, and physical characteristics are 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 when not in use to prevent absorption of atmospheric moisture, which can affect product stability and handling properties.

Specification

Item	Specification
Appearance	Dark blue to black powder or solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 5.0%
Sulfated Ash	Contact for details
Heavy Metals (as Pb)	≤ 20 ppm
Solubility	Soluble in water, DMSO; slightly soluble in common organic solvents

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