Description

Sodium 2-[[1-(2-Chloro-6-Methylphenyl)-4,5-Dihydro-3-Methyl-5-Oxo-1H-Pyrazol-4-Yl]Azo]Naphthalene-1-Sulphonate is a high-purity, water-soluble azo dye intermediate of significant commercial importance. This compound is valued for its role in synthesizing vibrant and stable colorants for demanding industrial applications. It is primarily required by manufacturers in the textile, ink, and specialty chemical sectors seeking reliable and consistent performance in their formulations.

Application

This azo dye intermediate serves as a critical building block in the production of various colorants. Its primary and related applications include:

• Textile Dye Synthesis: A key precursor for manufacturing dyes used in coloring natural and synthetic fibers.
• Ink Formulation: Used in the production of pigments for printing inks, including packaging and security inks.
• Leather Dyeing: Employed in the synthesis of dyes for the leather tanning and finishing industry.
• Paper Coloring: Acts as an intermediate for dyes used in specialty paper products.
• Plastic and Polymer Pigmentation: Utilized in creating colorants for plastics and synthetic materials.
• Research & Development: Serves as a standard or starting material in chemical research for novel dye development.

Basic Information

Item	Detail
Product Name	Sodium 2-[[1-(2-Chloro-6-Methylphenyl)-4,5-Dihydro-3-Methyl-5-Oxo-1H-Pyrazol-4-Yl]Azo]Naphthalene-1-Sulphonate
CAS No.	61556-43-2
Molecular Formula	C21H16ClN4NaO4S
Molecular Weight	478.88 g/mol
Synonyms	Acid Orange 156; C.I. 26415; Sodium 1-(2-chloro-6-methylphenyl)-4,5-dihydro-3-methyl-5-oxo-4-[(1-sulfo-2-naphthalenyl)azo]-1H-pyrazole; 1H-Pyrazole-1-acetic acid, 4,5-dihydro-4-[(2-hydroxy-1-naphthalenyl)azo]-3-methyl-5-oxo-2-(2,4,6-trichlorophenyl)-, sodium salt (1:1); Azo dye intermediate 61556-43-2; 2-Naphthalenesulfonic acid, 6-[[1-(2-chloro-6-methylphenyl)-4,5-dihydro-3-methyl-5-oxo-1H-pyrazol-4-yl]azo]-, sodium salt
EINECS	Contact for details

Quality Control

Our production of Sodium 2-[[1-(2-Chloro-6-Methylphenyl)-4,5-Dihydro-3-Methyl-5-Oxo-1H-Pyrazol-4-Yl]Azo]Naphthalene-1-Sulphonate adheres to stringent quality management protocols. Every batch undergoes rigorous analytical testing to ensure high purity, consistent color strength, and batch-to-batch uniformity. Comprehensive Certificates of Analysis (COA) detailing purity, impurity profile, and physical specifications are available upon request to support your quality assurance processes.

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	Orange to red-brown powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 5.0%
Sulfated Ash	≤ 20.0%
Heavy Metals (as Pb)	≤ 20 ppm
Solubility (in Water)	Freely soluble

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