Description

Sodium 6-Amino-5-[[2,3-Dihydro-1,3-Dioxo-2-(p-Tolyl)-1H-Isoindol-5-Yl]Azo]-4-Hydroxynaphthalene-2-Sulphonate is a high-purity, water-soluble azo dye intermediate essential for producing vibrant and stable colorants. This compound matters for its role in creating specialized pigments and dyes with excellent lightfastness and chemical resistance for demanding applications. It is primarily needed by manufacturers in the textile, ink, and specialty coatings industries seeking reliable and consistent color performance.

Application

• Primary intermediate for the synthesis of high-performance azo pigments and dyes.
• Key component in the manufacturing of colorants for textile printing and dyeing processes.
• Used in the formulation of specialty inks, including for packaging and security applications.
• Employed in the production of colorants for industrial coatings and plastics.
• Potential use as a reagent or colorimetric indicator in analytical chemistry and research laboratories.
• Serves as a starting material for creating custom color shades in specialty chemical applications.

Basic Information

Product Name	Sodium 6-Amino-5-[[2,3-Dihydro-1,3-Dioxo-2-(p-Tolyl)-1H-Isoindol-5-Yl]Azo]-4-Hydroxynaphthalene-2-Sulphonate
CAS No.	85030-28-0
Molecular Formula	C25H17N4NaO6S
Molecular Weight	524.48 g/mol
Synonyms	6-Amino-5-[(2,3-dihydro-1,3-dioxo-2-(4-methylphenyl)-1H-isoindol-5-yl)azo]-4-hydroxy-2-naphthalenesulfonic acid sodium salt; Sodium 6-amino-5-[(2,3-dihydro-1,3-dioxo-2-(p-tolyl)-1H-isoindol-5-yl)azo]-4-hydroxy-2-naphthalenesulfonate; Azo dye intermediate 85030-28-0; C.I. Pigment Yellow 185 (related); Sodium salt of an azo-naphthalene sulfonic acid derivative; 2-Naphthalenesulfonic acid, 6-amino-5-[(2,3-dihydro-1,3-dioxo-2-(4-methylphenyl)-1H-isoindol-5-yl)azo]-4-hydroxy-, monosodium salt
EINECS	Contact for details

Quality Control

Our Sodium 6-Amino-5-[[2,3-Dihydro-1,3-Dioxo-2-(p-Tolyl)-1H-Isoindol-5-Yl]Azo]-4-Hydroxynaphthalene-2-Sulphonate is produced under a stringent quality management system. Every batch undergoes rigorous analytical testing to ensure high purity, consistent color strength, and batch-to-batch uniformity suitable for industrial synthesis. Certificates of Analysis (COA) detailing purity, assay, and impurity profiles are available upon request.

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 to prevent absorption of atmospheric moisture.

Specification

Item	Specification
Appearance	Dark red to brown powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 5.0%
Water Solubility	Freely soluble
Heavy Metals (as Pb)	≤ 20 ppm
Residue on Ignition (Sulfated Ash)	Contact for details

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