Description

Drimarene Brilliant Blue K-Bl is a high-performance, reactive dye belonging to the anthraquinone class, known for its brilliant blue hue and excellent fastness properties. This product is engineered to deliver consistent, vibrant coloration with strong covalent bonding to cellulosic fibers, ensuring superior wash and light fastness. It is an essential component for textile manufacturers, paper colorants, and specialty chemical producers seeking reliable and brilliant blue shades for their products.

Application

• Primary application in the exhaust dyeing and printing of cotton, viscose, and other cellulosic fibers.
• Used in the coloration of paper and paperboard for decorative and packaging purposes.
• Employed in the production of leather dyes for achieving uniform and bright blue finishes.
• Suitable for batchwise and continuous dyeing processes in the textile industry.
• Can be used in formulations for specialty inks and colorants.
• Applied in research and development for synthetic dye chemistry and new material studies.

Basic Information

Product Name	Drimarene Brilliant Blue K-Bl
CAS No.	51811-44-0
Molecular Formula	C29H17ClN7Na4O19S6
Molecular Weight	1159.28 g/mol
Synonyms	Reactive Blue 221; C.I. Reactive Blue 221; Drimarene Brilliant Blue K-BL; Brilliant Blue K-BL; Reactive Brilliant Blue K-BL; Remazol Brilliant Blue R (related class); Anthraquinone Reactive Dye; Sodium 1-amino-4-[3-[(4,6-dichloro-1,3,5-triazin-2-yl)amino]-4-sulfonatoanilino]-9,10-dioxo-9,10-dihydroanthracene-2-sulfonate
EINECS	Contact for details

Quality Control

Our Drimarene Brilliant Blue K-Bl is manufactured under a stringent quality management system to ensure batch-to-batch consistency and performance. Each lot is tested against rigorous internal specifications for critical parameters such as color strength, solubility, and reactive group content. A comprehensive Certificate of Analysis (COA) detailing purity, physical properties, and performance characteristics is provided with every shipment to guarantee compliance with your application requirements.

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). This material is hygroscopic (moisture-sensitive); ensure the container is kept tightly sealed to prevent absorption of atmospheric moisture, which may affect performance.

Specification

Item	Specification
Appearance	Blue Powder
Identification (IR)	Conforms to Standard
Color Strength	100 ± 3% (vs. Standard)
Assay (HPLC)	≥ 95.0%
Moisture Content	≤ 5.0%
Water Solubility	≥ 50 g/L (at 25°C)
pH (1% Solution)	6.0 - 8.0
Fixation Rate	≥ 70% (on cotton)

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