Description

Reactive Orange 2 is a versatile, water-soluble azo dye belonging to the reactive dye class, primarily used for coloring cellulosic fibers. Its commercial importance lies in its ability to form a covalent bond with the fiber substrate, resulting in excellent wash and light fastness properties. This product is essential for textile manufacturers, leather tanners, and paper producers seeking vibrant and durable orange to red-orange hues. The compound is identified by CAS No. 6014-69-3.

Application

• Textile Dyeing: Primary application for dyeing cotton, viscose, linen, and other cellulosic fibers with high color fastness.
• Leather Coloring: Used in the tanning industry to impart consistent and bright orange shades to leather goods.
• Paper Staining: Effective for coloring paper products, including specialty papers and packaging materials.
• Ink Formulation: A key component in the manufacture of inks for various printing applications.
• Research & Development: Serves as a standard or intermediate in chemical research and quality control laboratories.
• Wool and Silk Dyeing: Can be applied to protein-based fibers like wool and silk under suitable conditions.

Basic Information

Product Name	Reactive Orange 2
CAS No.	6014-69-3
Molecular Formula	C26H17ClN7Na3O10S3
Molecular Weight	829.06 g/mol
Synonyms	Reactive Orange 2; Reactive Orange II; C.I. Reactive Orange 2; Reactive Orange 2 (C.I. 18260); 2,7-Naphthalenedisulfonic acid, 5-[[4-chloro-6-[(3-sulfophenyl)amino]-1,3,5-triazin-2-yl]amino]-4-hydroxy-3-[(4-methoxy-6-methyl-1,3,5-triazin-2-yl)azo]-, trisodium salt; Reactive Brilliant Orange X-GN; Remazol Brilliant Orange 3R; Levafix Orange E-3GA
EINECS	227-923-5

Quality Control

Our Reactive Orange 2 is manufactured under a stringent quality management system. Every batch undergoes comprehensive analytical testing, including spectrophotometric purity analysis, strength assessment, and solubility checks, to ensure it meets the high standards required for industrial dyeing processes. A Certificate of Analysis (COA) detailing purity, shade, and fastness properties is provided with each shipment to guarantee batch-to-batch consistency and performance 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). This product is hygroscopic (moisture-sensitive); therefore, the original container must be kept tightly sealed when not in use to prevent absorption of atmospheric moisture, which can affect performance. Keep away from incompatible materials.

Specification

Item	Specification
Appearance	Orange to Red-Orange Powder
Identification (IR)	Conforms to Standard
Color Strength	100 ± 3% (vs. Standard)
Purity (HPLC)	≥ 95.0%
Moisture Content	≤ 5.0%
Water Solubility	Conforms
pH (1% Solution)	6.0 - 8.0
Fastness Properties	To be specified per grade

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