Description

4-[[2,6-Dihydroxy-3-[(4-Nitrophenyl)Azo]-5-[(6-Sulpho-1-Naphthyl)Azo]Phenyl]Azo]Naphthalene-1-Sulphonic Acid, Sodium Salt is a high-purity, complex azo dye intermediate known for its vivid color properties and structural stability. This compound is critical for manufacturers requiring precise and consistent chromophores for advanced dye and pigment synthesis. It is primarily utilized by the textile, ink, and specialty coatings industries for producing high-performance colorants.

Application

• Primary intermediate for the synthesis of high-grade, complex azo dyes and pigments.
• Key chromophore component in the manufacturing of textile dyes for nylon, silk, and wool.
• Used in the production of colorants for inks, including specialty printing and packaging inks.
• Essential raw material for industrial coatings and automotive paints requiring specific hue and lightfastness.
• Potential use in the formulation of biological stains and indicators for laboratory and diagnostic applications.
• Research and development of novel functional dyes for optical and electronic applications.

Basic Information

Product Name	4-[[2,6-Dihydroxy-3-[(4-Nitrophenyl)Azo]-5-[(6-Sulpho-1-Naphthyl)Azo]Phenyl]Azo]Naphthalene-1-Sulphonic Acid, Sodium Salt
CAS No.	94107-89-8
Molecular Formula	C32H19N7O10S2Na
Molecular Weight	773.66 g/mol (as Sodium Salt)
Synonyms	Sodium 4-[[2,6-dihydroxy-3-[(4-nitrophenyl)azo]-5-[(6-sulfo-1-naphthyl)azo]phenyl]azo]naphthalene-1-sulfonate; C.I. Acid Black 210; Acid Black 210; Azo Black 210; 4-[[2,6-Dihydroxy-3-[(4-nitrophenyl)azo]-5-[(6-sulfo-1-naphthyl)azo]phenyl]azo]-1-naphthalenesulfonic Acid Sodium Salt; 1-Naphthalenesulfonic acid, 4-[[2,6-dihydroxy-3-[(4-nitrophenyl)azo]-5-[(6-sulfo-1-naphthyl)azo]phenyl]azo]-, sodium salt; Black 210.
EINECS	Contact for details

Quality Control

Our production of this azo dye intermediate adheres to stringent quality control protocols to ensure batch-to-batch consistency and high purity. Every lot is tested against established specifications for identity, strength, and impurity profiles. A comprehensive Certificate of Analysis (COA) detailing assay, heavy metals, and related substances is provided with each shipment to support your quality assurance processes.

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). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after each use to prevent degradation from atmospheric moisture.

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	15.0% - 20.0%
Heavy Metals (as Pb)	≤ 20 ppm
Related Substances (HPLC)	Total impurities ≤ 3.0%
Solubility (1% in Water)	Complete, clear solution

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