Description

Trisodium 5-[(4,5-Dihydro-3-Methyl-5-Oxo-1-Phenyl-1H-Pyrazol-4-Yl)Azo]-4-Hydroxy-3-[(2-Hydroxy-3-Nitro-5-Sulphonatophenyl)Azo]Naphthalene-2,7-Disulphonate is a high-purity, water-soluble azo dye intermediate with a complex, multi-functional structure. This compound matters for its ability to impart specific, stable color properties in demanding industrial applications, where consistency and performance are critical. It is primarily needed by manufacturers in the textile, leather, and specialty ink industries seeking reliable and high-performance dye components.

Application

• Primary intermediate for the synthesis of high-grade, complex azo dyes and pigments.
• Key component in the production of dyes for textile fibers, including cotton, wool, and nylon.
• Used in the formulation of dyes for leather finishing and coloring.
• Employed in the manufacture of colorants for specialty inks, including jet printing inks.
• Potential use as a colorant or intermediate in the production of paper and pulp products.
• Research and development applications in advanced material science and novel chromophore design.

Basic Information

Item	Details
Product Name	Trisodium 5-[(4,5-Dihydro-3-Methyl-5-Oxo-1-Phenyl-1H-Pyrazol-4-Yl)Azo]-4-Hydroxy-3-[(2-Hydroxy-3-Nitro-5-Sulphonatophenyl)Azo]Naphthalene-2,7-Disulphonate
CAS No.	72152-58-0
Molecular Formula	C26H14N6Na3O16S3
Molecular Weight	872.62 g/mol
Synonyms	Acid Black 210; C.I. 300310; Trisodium 4-hydroxy-3-[(2-hydroxy-3-nitro-5-sulfophenyl)azo]-5-[(3-methyl-5-oxo-1-phenyl-4,5-dihydro-1H-pyrazol-4-yl)azo]naphthalene-2,7-disulfonate; 5-[(4,5-Dihydro-3-methyl-5-oxo-1-phenyl-1H-pyrazol-4-yl)azo]-4-hydroxy-3-[(2-hydroxy-3-nitro-5-sulfophenyl)azo]naphthalene-2,7-disulfonic acid trisodium salt; C.I. Acid Black 210; Acid Black 210, trisodium salt; Reactive Black 5 related intermediate; Complex azo dye intermediate
EINECS	Contact for details

Quality Control

Our production of this advanced dye intermediate adheres to strict quality management systems. Every batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure it meets precise customer specifications and industry standards. A comprehensive Certificate of Analysis (COA) detailing purity, impurity profile, and physical characteristics is provided with each shipment to guarantee traceability and supply chain reliability.

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 nature, the container must be kept sealed to prevent moisture absorption, which can affect product performance and handling.

Specification

Item	Specification
Appearance	Dark brown to black powder or granules
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Moisture Content	≤ 5.0%
Solubility (in Water)	Clear solution at 1%
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.