Description

Reactive Orange 46 is a high-performance, fiber-reactive dye belonging to the azo dye class, identified by CAS No. 12769-04-9. It is engineered to deliver brilliant and durable orange shades with excellent wash and light fastness properties on cellulosic fibers. This product is essential for textile manufacturers and dye houses seeking reliable, consistent coloration for cotton, viscose, and other natural fabrics.

Application

• Primary dyeing and printing of cotton fabrics and yarns.
• Coloration of viscose (rayon) and other regenerated cellulosic materials.
• Used in exhaust dyeing processes for batch production.
• Applied in continuous dyeing ranges for high-volume textile manufacturing.
• Suitable for the dyeing of linen and hemp fibers.
• Formulation of specialty dye mixtures and ink for textile printing.

Basic Information

Product Name	Reactive Orange 46
CAS No.	12769-04-9
Molecular Formula	C26H17ClN7Na3O11S3
Molecular Weight	837.08 g/mol
Synonyms	Reactive Orange H-ER; C.I. Reactive Orange 46; Reactive Brilliant Orange H-ER; Reactive Orange HE2R; 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 Orange HE-2R; Trisodium 5-({4-chloro-6-[(3-sulfophenyl)amino]-1,3,5-triazin-2-yl}amino)-4-hydroxy-3-[(2-sulfophenyl)diazenyl]naphthalene-2,7-disulfonate
EINECS	Contact for details

Quality Control

Our Reactive Orange 46 is manufactured under a stringent quality management system to ensure batch-to-batch consistency and performance reliability. Every lot is tested against key parameters including color strength, shade, solubility, and fixation properties. A comprehensive Certificate of Analysis (COA) detailing purity, physical properties, and application performance is provided with each shipment to guarantee it meets your specific dyeing requirements.

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 incompatible materials. The product is hygroscopic (moisture-sensitive); ensure the container is sealed after each use to prevent moisture absorption.

Specification

Item	Specification
Appearance	Orange to Reddish-Orange Powder
Color Strength	≥ 98% (Standard)
Moisture Content	≤ 5.0%
Water Solubility	≥ 100 g/L (at 50°C)
pH (1% Solution)	6.0 - 8.0
Identification (IR)	Conforms
Fixation Rate	≥ 70% (Standard Conditions)
Dusting Property	Low

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