Description

Reactive Blue 113 is a high-performance, vinyl sulfone-based reactive dye renowned for its excellent wash and light fastness properties. This product is essential for achieving brilliant and durable blue shades on cellulosic fibers like cotton and viscose. It is a critical component for textile manufacturers, dye houses, and chemical distributors serving the global apparel and home furnishing industries. Its robust performance makes it suitable for demanding dyeing applications requiring consistent color yield and superior fastness.

Application

• Primary application in the exhaust dyeing of cotton yarn and knitted fabrics.
• Widely used in the continuous dyeing processes for woven cotton fabrics.
• Effective for dyeing viscose (rayon) and other regenerated cellulosic fibers.
• Suitable for garment dyeing due to its good leveling and migration properties.
• Used in formulations for producing navy blue, royal blue, and black shades in combination with other reactive dyes.
• Applicable in the textile printing industry for creating wash-fast prints.

Basic Information

Product Name	Reactive Blue 113
CAS No.	61969-02-6
Molecular Formula	C32H21ClN7Na4O19S6
Molecular Weight	1134.38 g/mol
Synonyms	Reactive Blue VS-R; C.I. Reactive Blue 113; Remazol Brilliant Blue R; Levafix Brilliant Blue E-BRA; Drimarene Brilliant Blue K-2RL; Vinylsulfone Reactive Blue 113; Sodium 4-[(4,6-dichloro-1,3,5-triazin-2-yl)amino]-5-hydroxy-3-[[4-[[2-(sulfonatooxy)ethyl]sulfonyl]phenyl]azo]-6-[[4-[[2-(sulfonatooxy)ethyl]sulfonyl]phenyl]azo]-2,7-naphthalenedisulfonate
EINECS	Contact for details

Quality Control

Every batch of Reactive Blue 113 is manufactured and tested under a strict quality management system to ensure consistent strength, shade, and reactivity. Our quality control protocols include verification of key parameters such as dye content, solubility, and fastness properties against industry benchmarks. Certificates of Analysis (COA) detailing batch-specific results are available upon request 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 product is hygroscopic (moisture-sensitive); the original container must be kept tightly sealed to prevent absorption of atmospheric moisture, which can affect performance.

Specification

Item	Specification
Appearance	Blue powder
Identification (IR)	Conforms
Color Strength	100 ± 3% (vs. Standard)
Dye Content	≥ 70%
Moisture Content	≤ 7.0%
Water Insoluble Matter	≤ 1.0%
Solubility (50°C)	≥ 100 g/L
pH (1% Solution)	5.5 - 7.5
Shade	Conforms to standard
Fastness Properties (Typical on Cotton)	Wash: 4-5, Light: 5-6

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