Chromate(2-), [2,4-dihydro-4-[(2-hydroxy-4-nitrophenyl)azo]-5-methyl-2-phenyl-3H-pyrazol-3-onato(2-)][4-[(4,5-dihydro-3-methyl-5-oxo-1-phenyl-1H-pyrazol-4-yl)azo]-3-hydroxy-1-naphthalenesulfonato(3-)]-, disodium CAS NO 83833-37-8

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CAS No.:83833-37-8

Grade:Pharmacy Grade

Content:99.9%

Brand:Customizable

Packaging:Customizable

Description

Chromate(2-), [2,4-dihydro-4-[(2-hydroxy-4-nitrophenyl)azo]-5-methyl-2-phenyl-3H-pyrazol-3-onato(2-)][4-[(4,5-dihydro-3-methyl-5-oxo-1-phenyl-1H-pyrazol-4-yl)azo]-3-hydroxy-1-naphthalenesulfonato(3-)]-, disodium is a complex, high-purity coordination compound primarily used as a specialized colorant and functional dye. Its value lies in its unique chromate-based structure, which provides excellent color fastness, thermal stability, and compatibility with various industrial matrices. This product is essential for manufacturers in the pigments, advanced coatings, and specialty plastics sectors seeking high-performance coloring agents.

Application

High-Performance Pigments: Used in the formulation of industrial and automotive coatings requiring superior weatherability and chemical resistance.
Specialty Plastics and Polymers: Imparts stable coloration to engineering plastics and synthetic fibers where high-temperature processing is involved.
Functional Dyes: Serves in applications beyond simple coloration, such as in light-absorbing layers or as a marker in specific analytical or material science contexts.
Advanced Ink Systems: A key component in specialty printing inks for security, packaging, or durable outdoor applications.
Research & Development: Utilized as a reference standard or a precursor in the synthesis of novel coordination complexes and materials.

Basic Information


Product Name	Chromate(2-), [2,4-dihydro-4-[(2-hydroxy-4-nitrophenyl)azo]-5-methyl-2-phenyl-3H-pyrazol-3-onato(2-)][4-[(4,5-dihydro-3-methyl-5-oxo-1-phenyl-1H-pyrazol-4-yl)azo]-3-hydroxy-1-naphthalenesulfonato(3-)]-, disodium
CAS No.	83833-37-8
Molecular Formula	C36H22CrN8Na2O11S
Molecular Weight	864.66 g/mol
Synonyms	Disodium Chromium Complex of Azo Dyes; C.I. Mordant Black 17 (related complex); Chromium Azo Complex Dye; [Cr(Complex Azo Dye)]Na2; Chromate(2-) disodium salt of bis(azo)pyrazolone ligand; Mordant Black 17 Chromium Lake; Pigment Black 17 (related index); 83833-37-8
EINECS	Contact for details

Quality Control

Our production of this specialty chromate complex adheres to stringent quality protocols. Every batch undergoes comprehensive analysis to ensure consistency in chromium content, color value, purity, and impurity profile. We provide detailed Certificates of Analysis (COA) with each shipment, documenting key parameters to support your quality assurance and regulatory needs. Specifications can be aligned with customer-specific requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after opening to prevent absorption of atmospheric moisture, which can affect product performance.

Specification

Item	Specification
Appearance	Dark colored powder or solid
Identification (IR)	Conforms to structure
Assay (Chromium Content)	Min. 95.0%
Purity (HPLC)	Min. 90.0%
Loss on Drying	Max. 5.0%
Heavy Metals (as Pb)	Max. 20 ppm
Solubility	Soluble in specific polar solvents