Description

Reactive Red 74 is a high-performance, water-soluble azo dye belonging to the reactive dye class, designed for covalent bonding with cellulosic fibers. Its primary value lies in producing brilliant and wash-fast red shades on cotton, viscose, and other natural textiles. This dye is essential for textile manufacturers and dye houses seeking reliable, vibrant coloration with excellent fastness properties. The compound is identified by the CAS registry number 12270-82-5.

Application

• Textile Dyeing: Primary application for exhaust and continuous dyeing of cotton, linen, hemp, and other cellulosic fibers.
• Viscose/Rayon Coloration: Imparts bright red hues with high fixation rates on regenerated cellulose materials.
• Garment Dyeing: Used for dyeing finished knitwear and apparel due to its good leveling and penetration properties.
• Yarn Dyeing: Suitable for dyeing cotton and blended yarns in package, beam, or hank dyeing machines.
• Union Dyeing: Can be applied in combination with other dye classes for dyeing cellulose components in fiber blends.
• Printing Pastes: Formulated into printing pastes for textile printing applications requiring a reactive red colorant.

Basic Information

Product Name	Reactive Red 74
CAS No.	12270-82-5
Molecular Formula	C29H19ClN7Na4O19S6
Molecular Weight	1127.26 g/mol
Synonyms	Reactive Red 74; C.I. Reactive Red 74; Reactive Brilliant Red M-8B; Reactive Red M-8B; Levafix Red CA; Procion Red H-8B; Remazol Red RB; C.I. 18221; 2,7-Naphthalenedisulfonic acid, 5-[[4-chloro-6-[[3-[[2-(sulfooxy)ethyl]sulfonyl]phenyl]amino]-1,3,5-triazin-2-yl]amino]-4-hydroxy-3-[[2-methoxy-5-[(2-sulfooxyethyl)sulfonyl]phenyl]azo]-, tetrasodium salt
EINECS	Contact for details

Quality Control

Our Reactive Red 74 is manufactured under a strict quality management system. Every batch undergoes comprehensive testing for critical parameters including color strength, shade, solubility, and fixation rate to ensure consistent performance in downstream applications. Certificates of Analysis (COA) detailing purity, physical properties, and application fastness are available upon request.

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 excessive heat. The product is hygroscopic (moisture-sensitive); ensure the container is sealed after each use to prevent moisture absorption and caking.

Specification

Item	Specification
Appearance	Reddish-brown powder
Color Strength	100 ± 3% (vs. Standard)
Moisture Content	≤ 7.0%
Water Insoluble Matter	≤ 0.2%
pH (1% Solution)	5.5 - 7.5
Identification (IR)	Conforms
Shade	Conforms to Standard
Fixation Rate	≥ 70%

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