Description

Chromate(3-), Bis[3-[(5-Chloro-2-Hydroxyphenyl) Azo]-4-Hydroxy-6-[(1-Oxo-2-Propenyl)Amino ]-2-Naphthalenesulfonato(3-)]-, Trihydrogen is a complex, high-purity chromium-based azo dye intermediate. This compound is valued for its specific chromophoric properties and ability to form stable complexes, making it a critical precursor in the synthesis of specialized pigments and dyes. It is primarily required by manufacturers in the colorants, specialty coatings, and advanced materials sectors for producing high-performance, color-fast products.

Application

• Precursor for High-Performance Organic Pigments: A key intermediate in the synthesis of complex azo pigments known for excellent lightfastness and weather resistance.
• Specialty Dye Manufacturing: Used in the production of dyes for advanced applications in plastics, inks, and coatings where specific color properties and stability are required.
• Functional Colorants: Potential use in creating colorants with additional functional properties for security inks or specialized marking systems.
• Research & Development: Serves as a building block in chemical R&D for developing novel chromophores and metal-complex dyes.
• Analytical Reagent: May be utilized as a specialized reagent or standard in analytical chemistry for colorimetric methods or calibration.

Basic Information

Product Name	Chromate(3-), Bis[3-[(5-Chloro-2-Hydroxyphenyl) Azo]-4-Hydroxy-6-[(1-Oxo-2-Propenyl)Amino ]-2-Naphthalenesulfonato(3-)]-, Trihydrogen
CAS No.	132435-13-3
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	C.I. Mordant Black 31 (related complex); Chromate(3-), bis[3-[(5-chloro-2-hydroxyphenyl)azo]-4-hydroxy-6-[(1-oxo-2-propenyl)amino]-2-naphthalenesulfonato(3-)]-, trihydrogen; Trisodium [3-[(5-chloro-2-hydroxyphenyl)azo]-4-hydroxy-6-[(1-oxo-2-propenyl)amino]naphthalene-2-sulfonate]chromate(III); Chromium complex of an azo dye derived from 5-chloro-2-aminophenol and H-acid derivative; Azo chromium complex dye intermediate; Mordant Black 31 chromium complex (precursor)
EINECS	Contact for details

Quality Control

Our Chromate(3-), Bis[3-[(5-Chloro-2-Hydroxyphenyl) Azo]-4-Hydroxy-6-[(1-Oxo-2-Propenyl)Amino ]-2-Naphthalenesulfonato(3-)]-, Trihydrogen is produced under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure consistent purity, composition, and performance characteristics. Certificates of Analysis (COA) detailing key specifications are provided to guarantee compliance with your technical requirements and 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 a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed when not in use to prevent degradation from 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. 2.0%
Heavy Metals (as Pb)	Max. 20 ppm
Residual Solvents (GC)	Complies with ICH guidelines

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