Description

C.I. Reactive Orange 50 is a high-performance, water-soluble reactive dye belonging to the azo chemical class. It is engineered to form a covalent bond with cellulosic fibers, delivering excellent wash and light fastness properties for durable coloration. This product is essential for textile manufacturers and dye houses specializing in the dyeing and printing of cotton, viscose, and other natural fibers. Its reliable batch-to-batch consistency ensures reproducible shades and optimal process efficiency in industrial applications.

Application

• Primary exhaust and continuous dyeing of cotton and viscose fabrics and yarns.
• Textile printing applications for cellulosic materials to achieve bright orange hues.
• Used in combination with other reactive dyes to produce a wide range of compound shades.
• Suitable for dyeing in various equipment types, including jet, beam, and winch dyeing machines.
• Application in the coloration of hemp, linen, and other natural cellulosic fibers.
• Potential use in the research and development of new dye formulations and specialty colorants.

Basic Information

Product Name	C.I. Reactive Orange 50
CAS No.	61969-14-0
Molecular Formula	C26H17ClN7Na4O16S4
Molecular Weight	1015.15 g/mol
Synonyms	Reactive Orange 50; Reactive Brilliant Orange 3R; C.I. 18260; Reactive Orange H-ER; Triazinyl reactive dye, Orange 50; 2,7-Naphthalenedisulfonic acid, 5-[[4-chloro-6-[[3-[[4-[[2-(sulfooxy)ethyl]sulfonyl]phenyl]amino]-4-sulfophenyl]amino]-1,3,5-triazin-2-yl]amino]-4-hydroxy-3-[[2-methoxy-5-methyl-4-[(2-sulfooxyethyl)sulfonyl]phenyl]azo]-, tetrasodium salt
EINECS	Contact for details

Quality Control

Our production of C.I. Reactive Orange 50 adheres to stringent quality management protocols to ensure superior color strength, purity, and application performance. Every batch is tested against key parameters including shade, solubility, fixation rate, and fastness properties. A comprehensive Certificate of Analysis (COA) detailing all test results is provided with each shipment to guarantee compliance with your technical specifications and ensure supply chain reliability.

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 original packaging should be kept sealed until use to prevent moisture absorption and contamination.

Specification

Item	Specification
Appearance	Orange to reddish-brown powder
Color Strength	≥ 100% (vs. Standard)
Solubility in Water	≥ 100 g/L (at 50°C)
pH (1% Solution)	5.5 - 7.5
Moisture Content	≤ 5.0%
Dye Content	≥ 70%
Identification (IR)	Conforms to standard
Fastness Properties	Wash: 4-5; Light: 5-6 (Typical on cotton)

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