Description

Reactive Red 243 is a high-performance, bifunctional reactive dye belonging to the azo dye class, specifically engineered for covalent bonding with cellulosic fibers. Its primary value lies in delivering excellent color fastness properties, including superior wash and light fastness, ensuring vibrant and durable coloration. This product is essential for textile manufacturers specializing in the dyeing and printing of cotton, viscose, and other cellulose-based fabrics, where consistent shade and high-quality results are critical.

Application

• Exhaust dyeing of cotton yarn and knitted fabrics.
• Continuous pad-steam and pad-batch dyeing processes for woven cotton.
• Textile printing applications on cellulosic substrates.
• Dyeing of regenerated cellulose fibers like viscose and lyocell.
• Used in combination with other reactive dyes to achieve a wide spectrum of shades.
• Applicable in industrial dye houses requiring high fixation and reproducibility.

Basic Information

Product Name	Reactive Red 243
CAS No.	158571-46-1
Molecular Formula	C31H19ClN7Na4O19S6
Molecular Weight	1191.26 g/mol
Synonyms	Reactive Red 243; C.I. Reactive Red 243; Reactive Red M-3BE; Levafix Red CA; Remazol Red CA; Sumifix Red CA; Procion Red CA; Dianix Red CA; Vinylsulfone/Amino Chlorotriazine Bifunctional Dye
EINECS	Contact for details

Quality Control

Our production of Reactive Red 243 adheres to stringent quality management protocols to ensure batch-to-batch consistency and performance reliability. Each lot is tested for critical parameters including dye content, shade, solubility, and fixation properties. Certificates of Analysis (COA) detailing purity and performance specifications are 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 product is hygroscopic (moisture-sensitive) and light-sensitive; containers must be kept tightly sealed after opening to prevent moisture absorption and degradation.

Specification

Item	Specification
Appearance	Reddish-brown powder
Identification (IR)	Conforms to standard
Dye Content	≥ 80%
Moisture Content	≤ 5.0%
Water Insoluble Matter	≤ 0.5%
Shade	Conforms to standard sample
Solubility in Water (50°C)	≥ 100 g/L
pH (1% Solution)	5.5 - 7.5

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