Description

(3Z)-3-[[2-Methyl-4-(2-Methylphenyl)Diazenyl-Phenyl]Hydrazinylidene]-4-Oxo-Naphthalene-1-Sulfonic Acid is a specialized azo dye intermediate characterized by its complex naphthalene sulfonic acid structure. This compound matters for its role as a critical precursor in the synthesis of high-performance, colorfast dyes and pigments. Industrial manufacturers in the textile, ink, and specialty coatings sectors require this high-purity intermediate to develop products with specific chromatic and stability properties.

Application

• Dye and Pigment Synthesis: Primary use as a key intermediate for manufacturing azo dyes, particularly for shades of red, orange, and brown.
• Textile Coloring: Used in the production of dyes for coloring natural and synthetic fibers, valued for potential light and wash fastness.
• Ink Formulation: Serves as a precursor for pigments used in printing inks, including those for packaging and publications.
• Industrial Coatings: Employed in creating colored coatings and paints where chemical resistance is required.
• Research & Development: Utilized in chemical research for developing new chromophores and studying azo dye chemistry.
• Specialty Chemical Production: Acts as a building block for more complex sulfonated aromatic compounds.

Basic Information

Product Name	(3Z)-3-[[2-Methyl-4-(2-Methylphenyl)Diazenyl-Phenyl]Hydrazinylidene]-4-Oxo-Naphthalene-1-Sulfonic Acid
CAS No.	6300-53-4
Molecular Formula	C24H20N4O4S
Molecular Weight	460.50 g/mol
Synonyms	1-Naphthalenesulfonic acid, 3-[(2-methyl-4-[(2-methylphenyl)azo]phenyl)hydrazono]-4-oxo-, (3Z)-; C.I. 26105; Acid Orange 33 (related precursor); (3Z)-3-[(2-Methyl-4-[(2-methylphenyl)diazenyl]phenyl)hydrazinylidene]-4-oxonaphthalene-1-sulfonic acid; 3-[(2-Methyl-4-[(2-methylphenyl)azo]phenyl)hydrazono]-4-oxo-1-naphthalenesulfonic acid; Azo dye intermediate 6300-53-4; Light-sensitive azo compound
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. Quality is verified through analytical techniques including HPLC, FT-IR, and elemental analysis. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with every shipment to support your quality assurance and regulatory needs.

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. Due to its complex azo-hydrazone structure, prolonged exposure to light or elevated temperatures should be avoided to maintain stability.

Specification

Item	Specification
Appearance	Orange to reddish-brown powder or crystalline solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 2.0%
Sulfated Ash	≤ 0.5%
Heavy Metals (as Pb)	≤ 20 ppm
Related Substances (HPLC)	Total impurities ≤ 5.0%
Solubility	Soluble in alkaline aqueous solutions; sparingly soluble in most organic solvents

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