Description

Tetrasodium 5-[[4'-[[2,6-diamino-4-[[8-hydroxy-3,6-disulphonato-7-[(4-sulphonato-1-naphthyl)azo]-2-naphthyl]azo]phenyl]azo]-3,3'-dimethyl[1,1'-biphenyl]-4-yl]azo]salicylate is a high-purity, water-soluble synthetic organic dye belonging to the azo class. This compound is engineered to deliver exceptional color strength and stability, making it a critical component for demanding industrial applications. It is primarily sought after by manufacturers in the textile, ink, and specialty coatings industries who require reliable and consistent colorants for their products.

Application

• Textile Dyeing: Used for dyeing natural and synthetic fibers, particularly where high wash and light fastness are required.
• Ink Formulation: Serves as a key pigment for manufacturing high-quality printing inks, including for packaging and security applications.
• Specialty Coatings: Imparts color to industrial and decorative coatings where chemical resistance is paramount.
• Paper Coloring: Employed in the production of colored paper and paper products.
• Leather Finishing: Used in dye baths for leather to achieve deep, uniform shades.
• Biological Staining: May be utilized in histological and cytological staining procedures in laboratory settings.
• Plastics and Polymers: Acts as a colorant for certain types of plastics and synthetic materials.

Basic Information

Product Name	Tetrasodium 5-[[4'-[[2,6-diamino-4-[[8-hydroxy-3,6-disulphonato-7-[(4-sulphonato-1-naphthyl)azo]-2-naphthyl]azo]phenyl]azo]-3,3'-dimethyl[1,1'-biphenyl]-4-yl]azo]salicylate
CAS No.	68631-12-9
Molecular Formula	C53H34N10Na4O19S4
Molecular Weight	Approx. 1300.0 g/mol
Synonyms	Acid Black 210; C.I. 300310; Tetrasodium 8-hydroxy-7-[[4-[[4'-[[2-hydroxy-5-sulfophenyl)azo]-3,3'-dimethyl[1,1'-biphenyl]-4-yl]azo]-2,5-diaminophenyl]azo]-1,3,6-naphthalenetrisulfonate; Reactive Black 5 (related class); Azo Black 210; Direct Black 210; Sulphonated Azo Dye 68631-12-9
EINECS	Contact for details

Quality Control

Our tetrasodium salicylate azo dye is produced under a stringent quality management system. Each batch undergoes rigorous analytical testing to ensure it meets precise specifications for color value, purity, and solubility. Certificates of Analysis (COA) documenting key parameters such as assay, heavy metal content, and identification are available upon request to support your quality assurance protocols.

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 hygroscopic (moisture-sensitive); ensure the container is kept tightly sealed to prevent absorption of atmospheric moisture.

Specification

Item	Specification
Appearance	Dark blue to black powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Color Strength	100 ± 5% (vs. Standard)
Water Solubility	Completely soluble
Moisture Content (KF)	≤ 5.0%
Sulfated Ash	≤ 20.0%
Heavy Metals (as Pb)	≤ 20 ppm

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