Description

Disodium 5-[[4-[Bis(2-Hydroxyethyl)Amino]Phenyl]Azo]-8-[(4-Sulphonatophenyl)Azo]Naphthalene-2-Sulphonate is a high-purity, water-soluble disazo dye with excellent color strength and stability. This compound is valued for its ability to provide consistent and vibrant coloration in demanding industrial applications. It is primarily sought after by manufacturers in the textile, ink, and specialty coatings industries who require reliable and high-performance colorants.

Application

• Textile Dyeing: As a key colorant for dyeing natural and synthetic fibers, particularly where bright, wash-fast shades are required.
• Ink Formulation: Used in the production of inks for jet printing, packaging, and security applications due to its solubility and color fidelity.
• Specialty Coatings: Imparts color to industrial coatings, paper coatings, and other surface treatment products.
• Biological Staining: Potential use as a histological or cytological stain in laboratory settings, subject to specific purity grades.
• Functional Dye Intermediate: Serves as a precursor or intermediate in the synthesis of more complex dye molecules and functional materials.
• Plastics and Polymers: For coloring certain types of plastics and polymer resins during manufacturing.

Basic Information

Product Name	Disodium 5-[[4-[Bis(2-Hydroxyethyl)Amino]Phenyl]Azo]-8-[(4-Sulphonatophenyl)Azo]Naphthalene-2-Sulphonate
CAS No.	38124-99-1
Molecular Formula	C28H26N6Na2O9S2
Molecular Weight	708.64 g/mol
Synonyms	Acid Black 210; C.I. 28440; Disodium 8-[(4-sulfophenyl)azo]-5-[[4-[bis(2-hydroxyethyl)amino]phenyl]azo]-2-naphthalenesulfonate; 2-Naphthalenesulfonic acid, 5-[[4-[bis(2-hydroxyethyl)amino]phenyl]azo]-8-[(4-sulfophenyl)azo]-, disodium salt; Black 210; Acid Dye Black 210; Azo Black 210
EINECS	Contact for details

Quality Control

Our production of Disodium 5-[[4-[Bis(2-Hydroxyethyl)Amino]Phenyl]Azo]-8-[(4-Sulphonatophenyl)Azo]Naphthalene-2-Sulphonate adheres to stringent quality management protocols. Every batch undergoes comprehensive analytical testing, including HPLC for purity and spectrophotometry for color strength, to ensure it meets precise customer specifications and industry standards. Certificates of Analysis (COA) documenting all critical parameters are available upon request.

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 product is hygroscopic (moisture-sensitive) and light-sensitive; prolonged exposure to moisture or direct light should be avoided to maintain stability and performance.

Specification

Item	Specification
Appearance	Dark blue to black powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Color Strength	98 - 102% (vs. Standard)
Moisture Content	≤ 5.0%
Water Solubility	Clear solution
Ash Content (Sulfated)	≤ 30.0%
Heavy Metals (as Pb)	≤ 20 ppm

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