Description

Copper, [29H,31H-phthalocyaninato(2-)-N29,N30,N31,N32]-, [[2-[(2-hydroxyethyl)(4-methoxy-6-sulfo-1,3,5-triazin-2-yl)amino]ethyl]amino]sulfonyl sulfo derivs., sodium salts is a highly functionalized, water-soluble copper phthalocyanine derivative. This compound is engineered for superior performance as a reactive dye, offering excellent color strength and stability. It is a critical component for industrial manufacturers requiring brilliant and durable blue to green shades on cellulosic fibers like cotton and viscose.

Application

• Reactive Dye for Textiles: Primary application for dyeing and printing cotton, linen, rayon, and other cellulosic fibers, providing excellent wash and light fastness.
• Ink Formulation: Used in the production of specialty inks, including inkjet and security inks, where high color purity and stability are required.
• Pigment Precursor: Serves as an intermediate or starting material for the synthesis of high-performance pigments and colorants.
• Functional Material Research: Investigated in advanced material science for applications in organic semiconductors, sensors, and photodynamic therapy due to its phthalocyanine core.
• Leather and Paper Coloring: Employed in the dyeing of leather and specialty papers to achieve vibrant, long-lasting colors.

Basic Information

Product Name	Copper, [29H,31H-phthalocyaninato(2-)-N29,N30,N31,N32]-, [[2-[(2-hydroxyethyl)(4-methoxy-6-sulfo-1,3,5-triazin-2-yl)amino]ethyl]amino]sulfonyl sulfo derivs., sodium salts
CAS No.	71076-99-8
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	C.I. Reactive Blue 21; Reactive Blue 21; Copper phthalocyanine trisulfonic acid derivative; Phthalocyanine Blue BN reactive dye; Triazine reactive copper phthalocyanine dye; C.I. 61211; Reactive Turquoise Blue; Sodium copper phthalocyanine trisulfonate reactive dye
EINECS	Contact for details

Quality Control

Our production of Reactive Blue 21 adheres to stringent quality protocols to ensure batch-to-batch consistency and performance reliability. Each lot is tested against key parameters including color strength, hue, solubility, and reactive group content. A comprehensive Certificate of Analysis (COA) detailing purity, impurity profile, and physical specifications 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, and well-ventilated area at room temperature (15-25°C). This material is hygroscopic (moisture-sensitive); the container must be kept tightly sealed to prevent absorption of atmospheric moisture, which can affect performance.

Specification

Item	Specification
Appearance	Blue to turquoise blue powder
Identification (IR)	Conforms to standard
Color Strength	≥ 100% (vs. Standard)
Moisture Content	≤ 5.0%
Water Solubility	Clear solution at 1%
pH (1% Solution)	6.0 - 8.0
Heavy Metals (as Pb)	≤ 20 ppm

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