Description

Reactive Orange 94 is a high-performance, water-soluble reactive dye belonging to the azo dye class, identified by CAS No. 129651-47-4. It is engineered to form a covalent bond with cellulose fibers, providing excellent wash and light fastness properties for vibrant and durable coloration. This product is essential for textile manufacturers and dye houses specializing in the dyeing and printing of cotton, viscose, and other cellulosic fabrics.

Application

• Exhaust dyeing of cotton yarn and knitted fabrics.
• Continuous pad-dyeing and pad-steam processes for woven cotton.
• Textile printing applications on cellulosic substrates.
• Dyeing of viscose rayon and other regenerated cellulose fibers.
• Used in the formulation of specialty dye mixtures for specific shade requirements.

Basic Information

Product Name	Reactive Orange 94
CAS No.	129651-47-4
Molecular Formula	C31H19ClN7Na4O19S6
Molecular Weight	1194.37 g/mol
Synonyms	Reactive Orange H-ER; C.I. Reactive Orange 94; Reactive Brilliant Orange H-ER; Reactive Orange HE4R; 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-[[4-[[2-(sulfooxy)ethyl]sulfonyl]phenyl]azo]-, tetrasodium salt; Tetrasodium 5-({4-chloro-6-[(3-{2-[(sulfonatooxy)ethyl]sulfonyl}phenyl)amino]-1,3,5-triazin-2-yl}amino)-4-hydroxy-3-[(4-{2-[(sulfonatooxy)ethyl]sulfonyl}phenyl)diazenyl]naphthalene-2,7-disulfonate
EINECS	Contact for details

Quality Control

Our Reactive Orange 94 is manufactured under a stringent quality management system. Every batch is tested to ensure consistent strength, shade, and reactivity, meeting the high standards required for industrial textile applications. A comprehensive Certificate of Analysis (COA) detailing purity, physical properties, and performance characteristics is provided with each shipment.

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). This product is hygroscopic (moisture-sensitive); the container must be kept tightly sealed to prevent absorption of atmospheric moisture, which can affect performance.

Specification

Item	Specification
Appearance	Orange to reddish-brown powder
Identification (IR)	Conforms to standard
Assay (HPLC)	Min. 95%
Shade	Conforms to standard
Solubility in Water	≥ 100 g/L (at 50°C)
Moisture Content	≤ 5.0%
pH (1% Solution)	5.5 - 7.5
Fastness Properties	Wash: 4-5; Light: 5-6 (Standard depth)

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