Description

2-[[4,5-Dihydro-3-Methyl-5-Oxo-1-[4-[[2-(Sulphooxy)Ethyl]Sulphonyl]Phenyl]-1H-Pyrazol-4-Yl]Azo]Naphthalene-1,5-Disulphonic Acid, Potassium Sodium Salt is a high-purity, water-soluble azo dye intermediate and reactive dye precursor. This compound is engineered for exceptional color strength and stability, making it a critical component for producing vivid and durable shades. It is primarily required by manufacturers in the textile, ink, and specialty chemical industries seeking reliable and consistent performance in their dye synthesis processes.

Application

• Reactive Dye Synthesis: A key intermediate for manufacturing high-performance reactive dyes used in textile dyeing and printing, particularly for cotton and other cellulosic fibers.
• Textile Industry: Used to produce dyes that offer excellent wash-fastness, light-fastness, and brilliant shades like reds, oranges, and yellows.
• Ink Formulation: Serves as a colorant precursor in the production of inks for digital, inkjet, and specialty printing applications.
• Leather Dyeing: Employed in the synthesis of dyes for coloring leather goods with high color yield and durability.
• Paper Coloring: Used in the manufacture of dyes for high-quality paper and packaging materials.
• Research & Development: Acts as a standard or building block in chemical research for developing new chromophores and functional dyes.

Basic Information

Product Name	2-[[4,5-Dihydro-3-Methyl-5-Oxo-1-[4-[[2-(Sulphooxy)Ethyl]Sulphonyl]Phenyl]-1H-Pyrazol-4-Yl]Azo]Naphthalene-1,5-Disulphonic Acid, Potassium Sodium Salt
CAS No.	85940-63-2
Molecular Formula	C22H16KxNayN4O13S4 (Contact for details)
Molecular Weight	Contact for details
Synonyms	Reactive Red Dye Intermediate; 1,5-Naphthalenedisulfonic acid, 2-[[4,5-dihydro-3-methyl-5-oxo-1-[4-[(2-sulfooxyethyl)sulfonyl]phenyl]-1H-pyrazol-4-yl]azo]-, potassium sodium salt; Potassium sodium 2-((4,5-dihydro-3-methyl-5-oxo-1-(4-((2-sulfonatooxyethyl)sulfonyl)phenyl)-1H-pyrazol-4-yl)azo)naphthalene-1,5-disulfonate; Azo Pyrazolone Dye; C.I. Reactive Red 198 intermediate; Textile Dye Precursor; Water-Soluble Azo Dye Salt
EINECS	Contact for details

Quality Control

Our production of 2-[[4,5-Dihydro-3-Methyl-5-Oxo-1-[4-[[2-(Sulphooxy)Ethyl]Sulphonyl]Phenyl]-1H-Pyrazol-4-Yl]Azo]Naphthalene-1,5-Disulphonic Acid, Potassium Sodium Salt adheres to stringent quality management systems to ensure batch-to-batch consistency and purity. Every lot is analyzed against rigorous in-house specifications, which typically include identity confirmation, assay, and impurity profiling. Certificates of Analysis (COA) documenting these results are provided to guarantee the material meets the specific requirements for dye and intermediate synthesis.

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). This material is hygroscopic (moisture-sensitive); keep the container tightly sealed to prevent absorption of atmospheric moisture.

Specification

Item	Specification
Appearance	Reddish-brown to dark brown powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Water Content (KF)	≤ 5.0%
Solubility (in Water)	Clear solution
Heavy Metals (as Pb)	≤ 20 ppm
pH (1% Solution)	6.0 - 8.0

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