Description

Reactive Blue 74 is a high-purity, reactive anthraquinone dye used for coloring cellulosic fibers. This product matters for its excellent wash and light fastness properties, providing vibrant and durable blue shades in textile applications. It is primarily needed by manufacturers in the textile dyeing and printing industries for cotton, viscose, and other cellulose-based materials. Our supply ensures consistent quality and reliable performance for industrial-scale production.

Application

• Exhaust dyeing of cotton yarn and fabrics
• Continuous pad-steam dyeing processes for cellulosics
• Textile printing applications on cellulose fibers
• Dyeing of viscose rayon and other regenerated cellulose
• Used in formulations for specialty ink and pigment production
• Research and development of new dye formulations

Basic Information

Product Name	Reactive Blue 74
CAS No.	12677-16-6
Molecular Formula	C29H19ClN7O11S3·2Na
Molecular Weight	Contact for details
Synonyms	Reactive Blue 74; C.I. Reactive Blue 74; Remazol Brilliant Blue R; Levafix Brilliant Blue E-B; Procion Blue H-ERD; Drimarene Brilliant Blue K-2RL; Sumifix Brilliant Blue R; Anthraquinone Blue Dye
EINECS	Contact for details

Quality Control

Our Reactive Blue 74 is manufactured under a strict quality management system. Every batch undergoes comprehensive analytical testing to ensure it meets precise color strength, solubility, and reactivity specifications critical for textile applications. Certificates of Analysis (COA) documenting purity, shade, and fastness properties are available upon request to 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 room temperature (15-25°C). Keep away from strong oxidizing agents and incompatible materials. The product is light-sensitive; prolonged exposure to light should be avoided to maintain color integrity.

Specification

Item	Specification
Appearance	Blue Powder
Color Strength	Standard Depth ± 3%
Moisture Content	≤ 5.0%
Water Solubility	≥ 50 g/L (at 50°C)
pH (1% Solution)	6.0 - 8.0
Identification (IR)	Conforms to Standard
Heavy Metals (as Pb)	≤ 50 ppm

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