Description

Reactive Orange 20 is a high-purity, reactive dye belonging to the azo dye class, specifically engineered for covalent bonding with cellulosic fibers. This compound matters for its excellent color fastness, brilliant orange hue, and reliable performance in demanding industrial dyeing processes. It is primarily needed by manufacturers in the textile industry for dyeing and printing cotton, viscose, and other natural fibers, as well as by research and development laboratories focusing on advanced material science.

Application

• Primary application in the exhaust dyeing of cotton and viscose fabrics and yarns.
• Used in the continuous dyeing and printing processes for cellulosic textiles.
• Employed in the coloration of paper and leather where reactive properties are beneficial.
• Suitable for batchwise dyeing processes requiring high fixation and wash-off properties.
• Acts as a key intermediate or reference standard in chemical research and quality control laboratories.
• Potential use in the development of colored polymers and specialty coatings.

Basic Information

Product Name	Reactive Orange 20
CAS No.	12225-91-1
Molecular Formula	C26H17ClN7Na3O11S3
Molecular Weight	837.08 g/mol
Synonyms	Reactive Orange HE2R; C.I. Reactive Orange 20; Reactive Orange HE-2R; Remazol Orange 3R; Levafix Orange E-3R; Procion Orange H-ER; 2,7-Naphthalenedisulfonic acid, 5-[[4-chloro-6-[(3-sulfophenyl)amino]-1,3,5-triazin-2-yl]amino]-4-hydroxy-3-[(2-sulfophenyl)azo]-, trisodium salt; Reactive Brilliant Orange 3R
EINECS	Contact for details

Quality Control

Our Reactive Orange 20 is manufactured under a stringent quality management system. Every batch undergoes rigorous testing to ensure consistent purity, color strength, and reactive group content, meeting the high standards required for industrial dyeing applications. A comprehensive Certificate of Analysis (COA) detailing assay, impurity profile, and physical parameters is provided with each shipment to guarantee traceability and performance.

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 moisture to maintain product integrity and shelf life.

Specification

Item	Specification
Appearance	Orange to reddish-brown powder
Identification (IR)	Conforms to structure
Assay (HPLC)	Min. 95%
Color Strength	100 ± 3% (vs. Standard)
Moisture Content	Max. 5.0%
Water Insoluble Matter	Max. 0.5%
pH (1% Solution)	6.0 - 8.0
Fixation Rate	Typ. >70% (on cotton)

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