Description

C.I. Reactive Red 104 is a high-performance, water-soluble reactive dye belonging to the azo dye class, identified by CAS No. 61969-30-0. It is engineered to form a covalent bond with cellulosic fibers, delivering excellent wash and light fastness properties. This product is essential for textile manufacturers and dye houses seeking vibrant, durable red shades on cotton, viscose, and other natural fibers.

Application

• Textile Dyeing: Primary application for exhaust and continuous dyeing of cotton, linen, hemp, and other cellulosic fabrics.
• Viscose Rayon Coloration: Used for dyeing viscose and rayon to achieve bright, uniform red hues with good penetration.
• Yarn Dyeing: Suitable for dyeing cellulosic yarns in package, beam, or hank dyeing machines.
• Garment Dyeing: Effective for producing fashionable, wash-fast red colors in finished garment dyeing processes.
• Printing Pastes: Can be formulated into printing pastes for textile printing applications on cellulosic substrates.
• Leather Auxiliary Dyeing: Used as a colorant in the dyeing of certain types of leather.

Basic Information

Product Name	C.I. Reactive Red 104
CAS No.	61969-30-0
Molecular Formula	C29H19ClN7Na4O19S6
Molecular Weight	1184.31 g/mol
Synonyms	Reactive Red 104; Reactive Red M-8B; Reactive Brilliant Red M-8B; C.I. 18214; Remazol Brilliant Red F3B; Levafix Brilliant Red E-4BA; Procion Red H-8BN; Drimarene Red K-4BL; Sumifix Brilliant Red 3BF; Benzanil Red R
EINECS	Contact for details

Quality Control

Our production of C.I. Reactive Red 104 adheres to stringent quality management protocols to ensure batch-to-batch consistency and performance reliability. Every lot is tested against key parameters including color strength, shade, solubility, and fixation rate. Certificates of Analysis (COA) documenting purity, physical properties, and application performance 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). Keep away from strong oxidizing agents. The product is hygroscopic (moisture-sensitive); ensure the original packaging is sealed after use to prevent moisture absorption and caking.

Specification

Item	Specification
Appearance	Reddish-brown powder
Color Strength	≥ 100% (Standard)
Moisture Content	≤ 7.0%
Water Solubility (at 50°C)	≥ 100 g/L
pH (1% Solution)	5.5 - 7.5
Fixation Rate	≥ 70%
Dusting Grade	Low dusting
Identification (HPLC/UV-Vis)	Conforms to standard

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