Description

Disodium 2-[[1-(2,5-Dichloro-4-Sulphonatophenyl)-4,5-Dihydro-3-Methyl-5-Oxo-1H-Pyrazol-4-Yl]Azo]Naphthalene-1-Sulphonate is a high-purity, synthetic organic compound belonging to the azo dye class, valued for its consistent color properties and chemical stability. This product is engineered to deliver reliable performance as a key intermediate or colorant in demanding industrial applications. It is primarily sought by manufacturers in the textile, ink, and specialty chemical sectors requiring precise and stable colorants.

Application

• Textile Dyeing Intermediate: A key precursor for synthesizing reactive and direct dyes for cotton, wool, and synthetic fibers.
• Ink Manufacturing: Used in the formulation of industrial and specialty printing inks to provide vivid and stable coloration.
• Pigment Production: Serves as a crucial intermediate in the manufacture of high-performance organic pigments.
• Research & Development: Employed in chemical research for developing new dye molecules and studying azo chemistry.
• Specialty Chemical Synthesis: Acts as a building block for creating complex colorants and functional chemicals.

Basic Information

Product Name	Disodium 2-[[1-(2,5-Dichloro-4-Sulphonatophenyl)-4,5-Dihydro-3-Methyl-5-Oxo-1H-Pyrazol-4-Yl]Azo]Naphthalene-1-Sulphonate
CAS No.	12220-64-3
Molecular Formula	C20H12Cl2N4Na2O7S2
Molecular Weight	593.34 g/mol
Synonyms	Acid Orange 116; C.I. 26410; Disodium 5-[(2,5-dichloro-4-sulfophenyl)azo]-3-methyl-4,5-dihydro-1H-pyrazol-5-ol-1-naphthalenesulfonate; 2-Naphthalenesulfonic acid, 5-[(2,5-dichloro-4-sulfophenyl)azo]-3-methyl-4,5-dihydro-1H-pyrazol-5-ol-, disodium salt; Azo dye intermediate 12220-64-3; 1,3-Naphthalenedisulfonic acid, 7-[(2,5-dichloro-4-sulfophenyl)azo]-1,2-dihydro-6-methyl-2-oxo-5-pyrazolyl-, disodium salt
EINECS	Contact for details

Quality Control

Our Disodium 2-[[1-(2,5-Dichloro-4-Sulphonatophenyl)-4,5-Dihydro-3-Methyl-5-Oxo-1H-Pyrazol-4-Yl]Azo]Naphthalene-1-Sulphonate is manufactured under a strict quality management system. Every batch undergoes rigorous analytical testing to ensure it meets precise specifications for identity, purity, and performance. Certificates of Analysis (COA) documenting these results are available upon request to support your quality assurance protocols.

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, which can affect product quality.

Specification

Item	Specification
Appearance	Orange to red-brown powder
Identification (IR)	Conforms to standard
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 5.0%
Heavy Metals (as Pb)	≤ 20 ppm
Water Solubility	Freely soluble

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