Description

Chromate(5-), Bis[4-Hydroxy-3-[(2-Hydroxy-5-Nitrophenyl)Azo]-5-[(2,5,6-Trichloro-4-Pyrimidinyl)Amino]-2,7-Naphthalenedisulfonato(4-)]-, Pentasodium is a high-purity, complex chromium-based azo dye intermediate. This compound is valued for its role as a critical precursor in the synthesis of specialized dyes and pigments, offering excellent color fastness and complexing properties. It is primarily required by manufacturers in the textile, leather, and specialty chemical industries for producing high-performance colorants.

Application

• Textile Dyeing: As a key intermediate for synthesizing metal-complex dyes used on wool, nylon, and silk, providing enhanced wash and light fastness.
• Leather Finishing: Used in the production of dyes for high-quality leather goods, ensuring deep, uniform coloration and durability.
• Specialty Pigments: Serves as a building block for manufacturing complex inorganic color pigments and lakes for industrial applications.
• Analytical Reagents: Potential use as a chromogenic agent or metal indicator in specific analytical chemistry and laboratory testing procedures.
• Research & Development: Employed in chemical R&D for studying azo dye chemistry, metal-ligand interactions, and developing new functional materials.

Basic Information

Item	Details
Product Name	Chromate(5-), Bis[4-Hydroxy-3-[(2-Hydroxy-5-Nitrophenyl)Azo]-5-[(2,5,6-Trichloro-4-Pyrimidinyl)Amino]-2,7-Naphthalenedisulfonato(4-)]-, Pentasodium
CAS No.	73195-16-1
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Pentasodium bis[4-hydroxy-3-[(2-hydroxy-5-nitrophenyl)azo]-5-[(2,5,6-trichloro-4-pyrimidinyl)amino]-2,7-naphthalenedisulfonate] chromate(5-); C.I. Mordant Black 17; Chromate(5-), bis[4-hydroxy-3-[(2-hydroxy-5-nitrophenyl)azo]-5-[(2,5,6-trichloro-4-pyrimidinyl)amino]-2,7-naphthalenedisulfonato(4-)], pentasodium; Acid Chrome Black T (related); Mordant Black 17; Complex chromium dye intermediate; Azo-chrome complex.
EINECS	Contact for details

Quality Control

Our Chromate(5-), Bis[4-Hydroxy-3-[(2-Hydroxy-5-Nitrophenyl)Azo]-5-[(2,5,6-Trichloro-4-Pyrimidinyl)Amino]-2,7-Naphthalenedisulfonato(4-)]-, Pentasodium is produced under a strict quality management system. Every batch undergoes rigorous analytical testing to ensure consistent purity, identity, and performance suitable for industrial synthesis. Certificates of Analysis (COA) documenting key specifications 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 nature, the container must be kept tightly sealed after opening to minimize exposure to atmospheric moisture. Keep away from incompatible materials.

Specification

Item	Specification
Appearance	Dark colored powder or solid
Identification (IR)	Conforms to structure
Assay (HPLC)	Min. 95%
Loss on Drying	Max. 5.0%
Heavy Metals (as Pb)	Max. 20 ppm
Residue on Ignition	Contact for details

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