Description

Chromate(3-), bis3-5-(aminosulfonyl)-2-(hydroxy-.kappa.O)phenylazo-.kappa.N1-4-(hydroxy-.kappa.O)-7-2-oxo-1-(phenylamino)carbonylpropylazo-2-naphthalenesulfonato(3-)-, trisodium is a complex, high-purity chromium-based azo dye intermediate. This compound is valued for its precise molecular structure, which provides excellent chromogenic properties and stability for demanding technical applications. It is primarily utilized by manufacturers in the specialty chemicals, advanced pigments, and high-performance dye industries seeking consistent quality for complex synthesis.

Application

• Specialty Dye and Pigment Synthesis: Serves as a critical precursor for manufacturing high-value, complex azo dyes and pigments.
• Advanced Colorant Production: Used in the formulation of specialized colorants for technical applications requiring specific lightfastness and chemical resistance.
• Research & Development: Employed as a key intermediate in chemical R&D for developing new chromogenic materials and functional dyes.
• Analytical Reagents: Potential use in the preparation of chromogenic reagents for analytical chemistry and diagnostic applications.
• Functional Material Development: May be investigated for use in creating materials with specific optical or coordination properties.

Basic Information

Product Name	Chromate(3-), bis3-5-(aminosulfonyl)-2-(hydroxy-.kappa.O)phenylazo-.kappa.N1-4-(hydroxy-.kappa.O)-7-2-oxo-1-(phenylamino)carbonylpropylazo-2-naphthalenesulfonato(3-)-, trisodium
CAS No.	119535-63-6
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Trisodium bis[5-(aminosulfonyl)-2-hydroxyphenyl)azo]-[4-hydroxy-7-[2-oxo-1-(phenylcarbamoyl)propyl]azo]naphthalene-2-sulfonato(3-)]chromate(3-); C.I. Mordant Black 31; Chromium complex dye intermediate; Azo chromium complex; Trisodium chromium complex dye
EINECS	Contact for details

Quality Control

Our production of this specialty chemical intermediate adheres to strict quality control protocols to ensure batch-to-batch consistency and purity. Each lot is analyzed against established internal specifications. A comprehensive Certificate of Analysis (COA) detailing identity, assay, and impurity profiles is provided with every shipment to support your quality assurance processes.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at controlled room temperature (typically 15-25°C). Keep away from incompatible materials. The product is light-sensitive and should be stored away from light as indicated.

Specification

Item	Specification
Appearance	Contact for details
Identification (IR)	Conforms
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 5.0%
Heavy Metals	≤ 20 ppm
Residual Solvents	Meets ICH guidelines

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