Description

Chromate, Hydroxy[4-Hydroxy-3-Nitro-5-[(1,2,3,4-Tetrahydro-2,4-Dioxo-3-Quinolinyl)Azo]Benzenesulfonato]-, Sodium is a complex, high-purity azo-chromium coordination compound designed for specialized industrial applications. This product is valued for its precise chemical structure, which provides excellent stability and consistent performance in demanding processes. It is primarily sought by manufacturers in the dye and pigment, analytical chemistry, and specialty chemical synthesis sectors for its unique functional properties.

Application

• As a key intermediate in the synthesis of high-performance, metal-complex dyes and pigments.
• In analytical chemistry as a specialized reagent or indicator for complexometric titrations and colorimetric assays.
• For research and development in coordination chemistry and materials science.
• Potential use in the formulation of specialized inks and coatings requiring specific light-fastness or color properties.
• As a catalyst or catalyst precursor in select organic synthesis reactions.

Basic Information

Product Name	Chromate, Hydroxy[4-Hydroxy-3-Nitro-5-[(1,2,3,4-Tetrahydro-2,4-Dioxo-3-Quinolinyl)Azo]Benzenesulfonato]-, Sodium
CAS No.	6656-02-6
Molecular Formula	C₁₉H₁₁CrN₄O₁₀S•Na (Contact for exact stoichiometry)
Molecular Weight	Contact for details
Synonyms	Sodium Hydroxy[4-Hydroxy-3-Nitro-5-[(1,2,3,4-Tetrahydro-2,4-Dioxo-3-Quinolinyl)Azo]Benzenesulfonato]Chromate; CI Mordant Yellow; Chromium Complex Dye Intermediate; Azo Chromium Lake Pigment Precursor; 3-Quinolinecarboxamide Derivative Chromate; Sodium (4-Hydroxy-3-nitro-5-[(2,4-dioxo-1,2,3,4-tetrahydro-3-quinolyl)azo]benzenesulfonato)hydroxychromate; Hydroxychromate Azo Dye Salt
EINECS	Contact for details

Quality Control

Our production of Chromate, Hydroxy[4-Hydroxy-3-Nitro-5-[(1,2,3,4-Tetrahydro-2,4-Dioxo-3-Quinolinyl)Azo]Benzenesulfonato]-, Sodium adheres to a strict quality management system to ensure batch-to-batch consistency and reliability. Each lot undergoes rigorous analytical testing, including identification, assay, and impurity profile analysis. Certificates of Analysis (COA) detailing all relevant specifications are provided with every shipment to support your quality assurance protocols.

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). This material is hygroscopic (moisture-sensitive); ensure the container is kept tightly sealed when not in use to prevent absorption of atmospheric moisture, which may affect product performance.

Specification

Item	Specification
Appearance	Orange to reddish-brown powder
Identification (IR)	Conforms to structure
Assay (HPLC)	Min. 95%
Loss on Drying	Max. 2.0%
Heavy Metals (as Pb)	Max. 20 ppm
Residual Solvents	Complies with ICH guidelines

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