Description

Disodium 8-[[4-[Ethyl[(3-Sulphonatophenyl)Methyl]Amino]Phenyl]Azo]-5-(Phenylazo)Naphthalene-2-Sulphonate is a high-purity, water-soluble azo dye intermediate of significant commercial importance. Its value lies in its role as a key 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 chemical industries who require consistent, high-quality intermediates for their production processes.

Application

• Primary intermediate for the synthesis of azo dyes and pigments used in textile coloration.
• Key component in the production of specialty inks, including those for packaging and security printing.
• Used in the formulation of colorants for plastics and polymers to achieve specific hues.
• Intermediate for research and development of novel functional dyes with specific optical properties.
• Potential use in the manufacturing of biological stains and indicators for laboratory applications.
• Starting material for creating high-performance pigments with enhanced light and weather fastness.

Basic Information

Product Name	Disodium 8-[[4-[Ethyl[(3-Sulphonatophenyl)Methyl]Amino]Phenyl]Azo]-5-(Phenylazo)Naphthalene-2-Sulphonate
CAS No.	62133-80-6
Molecular Formula	C33H28N5Na2O7S2
Molecular Weight	708.70 g/mol
Synonyms	Acid Black 210; C.I. 28440; Disodium 8-[[4-[ethyl[(3-sulfophenyl)methyl]amino]phenyl]azo]-5-(phenylazo)naphthalene-2-sulfonate; 8-[[4-[Ethyl[(3-Sulfophenyl)Methyl]Amino]Phenyl]Azo]-5-(Phenylazo)-2-Naphthalenesulfonic Acid Disodium Salt; Azo Black 210; Black 210; Dye Intermediate 62133-80-6
EINECS	Contact for details

Quality Control

Our production of Disodium 8-[[4-[Ethyl[(3-Sulphonatophenyl)Methyl]Amino]Phenyl]Azo]-5-(Phenylazo)Naphthalene-2-Sulphonate adheres to stringent quality management protocols to ensure batch-to-batch consistency and reliability. Each lot undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation. Certificates of Analysis (COA) detailing all specifications are provided with every shipment to support your quality assurance and regulatory compliance needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed when not in use to prevent absorption of atmospheric moisture, which can affect product quality.

Specification

Item	Specification
Appearance	Dark brown to black 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)	Clear solution

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