Description

2-[2-(4-Amino-2-Sulphophenyl)Vinyl]-5-[[4-[(4-Sulphophenyl)Azo]-1-Naphthyl]-Nno-Azoxy]Benzenesulphonic Acid is a high-purity, multi-sulfonated azo dye intermediate. This compound is valued for its ability to impart vivid and stable coloration, particularly in applications requiring high wash and light fastness. It is primarily utilized by manufacturers in the textile, ink, and specialty polymer industries for producing advanced dyes and pigments.

Application

• Textile Dyeing: A key intermediate for synthesizing reactive and direct dyes for cotton, wool, and nylon, offering excellent color yield and fastness properties.
• Ink Manufacturing: Used in the production of high-performance inks for digital, packaging, and industrial printing, providing intense color and stability.
• Pigment Synthesis: Serves as a precursor for creating organic pigments used in plastics, coatings, and masterbatches.
• Functional Polymers: Can be incorporated into polymers to introduce chromophoric or sulfonic acid groups for specialized applications.
• Research & Development: Employed in chemical research for developing new colorants and studying azo dye chemistry and photophysical properties.
• Leather Coloring: Used in the formulation of dyes for leather finishing, ensuring deep, uniform color penetration.

Basic Information

Product Name	2-[2-(4-Amino-2-Sulphophenyl)Vinyl]-5-[[4-[(4-Sulphophenyl)Azo]-1-Naphthyl]-Nno-Azoxy]Benzenesulphonic Acid
CAS No.	93964-18-2
Molecular Formula	C31H23N5O10S3
Molecular Weight	729.73 g/mol
Synonyms	Acid Black 210; C.I. 300310; Benzenesulfonic acid, 2-[2-(4-amino-2-sulfophenyl)ethenyl]-5-[[4-[(4-sulfophenyl)azo]-1-naphthalenyl]diazenyl]-; 2-[2-(4-Amino-2-sulfophenyl)vinyl]-5-{[4-(4-sulfophenyl)azo]-1-naphthyl}diazenyl]benzenesulfonic acid; Azo dye intermediate 93964-18-2; Trisulfonated azo dye intermediate
EINECS	Contact for details

Quality Control

Our production of 2-[2-(4-Amino-2-Sulphophenyl)Vinyl]-5-[[4-[(4-Sulphophenyl)Azo]-1-Naphthyl]-Nno-Azoxy]Benzenesulphonic Acid adheres to stringent quality management protocols. Every batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation, to ensure consistency and meet specified impurity profiles. Certificates of Analysis (COA) detailing all test results are provided with each shipment to guarantee supply reliability and product traceability.

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 sealed when not in use to prevent absorption of atmospheric moisture, which can affect product performance.

Specification

Item	Specification
Appearance	Dark brown to black powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Moisture Content	≤ 5.0%
Sulfated Ash	≤ 1.0%
Heavy Metals (as Pb)	≤ 20 ppm
Solubility (in water)	Partially soluble

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