Description

Sirius Supra Blue CAS NO 6252-57-9 is a high-purity synthetic organic dye belonging to the anthraquinone class. This compound is valued for its exceptional color strength, stability, and versatility in demanding industrial applications. It serves as a critical colorant and functional intermediate for manufacturers in the textile, specialty ink, and advanced materials sectors seeking reliable, consistent performance.

Application

• Textile Dyeing: Used for coloring synthetic fibers like polyester and nylon, offering excellent wash and light fastness.
• Specialty Inks: A key pigment for high-performance inks in packaging, security printing, and digital textile printing.
• Plastics and Polymers: Imparts stable coloration to engineering plastics and masterbatches.
• Liquid Crystal Displays (LCDs): Employed as a dichroic dye in guest-host LCD systems for electronic displays.
• Research and Development: Serves as a standard or intermediate in chemical synthesis and analytical method development.
• Functional Materials: Potential applications in organic photovoltaics and as a sensitizer in photo-initiated processes.

Basic Information

Product Name	Sirius Supra Blue CAS NO 6252-57-9
CAS No.	6252-57-9
Molecular Formula	C29H20N6Na2O8S2
Molecular Weight	698.67 g/mol
Synonyms	Reactive Blue 19; Remazol Brilliant Blue R; Sirius Supra Blue F3R-A; C.I. Reactive Blue 19; Sodium 1-amino-4-[3-((4-((2-((2-methylphenyl)amino)-2-oxoethyl)amino)-6-((2-(sulfooxy)ethyl)sulfonyl)-1,3,5-triazin-2-yl)amino)-4-sulfophenyl]amino)-9,10-dihydro-9,10-dioxoanthracene-2-sulfonate; Anthraquinone Blue F3R-A; Levafix Brilliant Blue R
EINECS	228-408-3

Quality Control

Every batch of Sirius Supra Blue is manufactured and tested under a strict quality management system. We provide comprehensive quality assurance, including HPLC purity analysis, color strength determination, and shade consistency checks against established standards. Certificates of Analysis (COA) detailing all test parameters are available upon request to ensure traceability and compliance with your specifications.

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). Keep away from incompatible materials and sources of ignition. For long-term storage, maintain under inert atmosphere to preserve product integrity.

Specification

Item	Specification
Appearance	Dark Blue Powder
Identification (IR)	Conforms to Standard
Assay (HPLC)	≥ 95.0%
Color Strength	100 ± 3% (vs. Std.)
Moisture Content	≤ 5.0%
Ash Content	≤ 1.0%
Water Solubility	Conforms
Heavy Metals (as Pb)	≤ 20 ppm

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