Description

Disodium 3,5-Diamino-2-[(2-Sulfophenyl)Azo]Benzoate Reaction Products With Diazotized 2-[(4-Aminophenyl)Sulfonyl]Ethyl Hydrogen Sulfate, Sodium Salts is a high-purity, complex azo dye intermediate designed for demanding industrial synthesis. This compound is critical for manufacturers requiring consistent reactivity and color strength for the production of specialized dyes and pigments. It is primarily utilized by the textile, ink, and specialty chemical industries for creating vibrant and stable colorants.

Application

• Primary intermediate for the synthesis of high-performance azo dyes and pigments used in textile coloration.
• Key component in the manufacturing of specialty inks, including those for packaging and security printing applications.
• Used in the production of colorants for plastics and polymers to achieve specific hue and lightfastness properties.
• Intermediate for research and development of novel functional dyes with potential applications in electronics or sensors.
• Employed in the synthesis of lake pigments for use in coatings and artist materials.
• Serves as a chemical building block in organic synthesis for compounds requiring a specific diazo or sulfonated aromatic structure.

Basic Information

Product Name	Disodium 3,5-Diamino-2-[(2-Sulfophenyl)Azo]Benzoate Reaction Products With Diazotized 2-[(4-Aminophenyl)Sulfonyl]Ethyl Hydrogen Sulfate, Sodium Salts
CAS No.	481066-69-7
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	C.I. Acid Yellow 220; Disodium 3,5-diamino-2-[(2-sulfophenyl)azo]benzoate, diazotized 2-[(4-aminophenyl)sulfonyl]ethyl hydrogen sulfate sodium salts reaction products; Acid Yellow 220; Azo dye intermediate YA-220; 3,5-Diamino-2-[(2-sulfophenyl)azo]benzoic acid, disodium salt, reaction products with diazotized 2-[(4-aminophenyl)sulfonyl]ethyl hydrogen sulfate sodium salts; Benzoic acid, 3,5-diamino-2-[(2-sulfophenyl)azo]-, disodium salt, reaction products with diazotized 2-[(4-aminophenyl)sulfonyl]ethyl hydrogen sulfate sodium salts
EINECS	Contact for details

Quality Control

Our production of this advanced dye intermediate adheres to strict quality management systems to ensure batch-to-batch consistency and reliability. Each lot undergoes comprehensive analytical testing, including chromatographic purity analysis and spectrophotometric assessment, to meet precise customer specifications. Certificates of Analysis (COA) documenting identity, purity, and key physical parameters are provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at controlled room temperature (15-25°C). Keep away from strong oxidizing agents and incompatible materials. The product is light-sensitive (store away from light).

Specification

Item	Specification
Appearance	Orange to brown powder or granules
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	Min. 95% (or as per customer grade)
Moisture Content	Max. 5.0%
Ash Content	Max. 20.0%
Heavy Metals (as Pb)	Max. 20 ppm
Water Solubility	Freely soluble

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