Description

Procion Brilliant Orange m-2Rs is a highly reactive, water-soluble azo dye belonging to the Procion MX series of fiber-reactive dyes. This compound is valued for its brilliant orange hue and excellent colorfastness properties, particularly on cellulosic fibers like cotton and viscose. It is a critical component for textile manufacturers, dye houses, and industrial colorant producers seeking vibrant, durable, and wash-fast coloration.

Application

• Textile Dyeing: Primary application for dyeing cotton, linen, rayon, and other cellulosic fabrics, offering excellent wash and light fastness.
• Garment Printing: Used in reactive printing pastes for creating vibrant, durable prints on natural fiber garments.
• Yarn Dyeing: Employed in the coloration of cellulosic yarns for weaving and knitting applications.
• Leather Coloring: Applied in the dyeing of leather goods where a bright orange shade is required.
• Paper Staining: Suitable for coloring paper and paper-based products where a specific shade is needed.
• Research & Development: Serves as a reference standard or intermediate in chemical research and dye synthesis laboratories.
• Educational Use: Utilized in academic settings for teaching principles of reactive dye chemistry and application techniques.

Basic Information

Product Name	Procion Brilliant Orange m-2Rs
CAS No.	35517-49-8
Molecular Formula	C19H10Cl2N6Na2O7S2
Molecular Weight	681.34 g/mol
Synonyms	Reactive Orange 4; C.I. Reactive Orange 4; Procion Orange MX-2R; Remazol Brilliant Orange 3R; Levafix Orange E-3GA; Drimarene Orange K-2R; Reactive Brilliant Orange K-2R; 2,7-Naphthalenedisulfonic acid, 4-[[4-chloro-6-[(3-sulfophenyl)amino]-1,3,5-triazin-2-yl]amino]-5-hydroxy-3-[(4-methoxyphenyl)azo]-, disodium salt
EINECS	252-603-5

Quality Control

Our Procion Brilliant Orange m-2Rs is manufactured under strict quality management systems. Every batch undergoes comprehensive analytical testing to ensure consistent strength, shade, and reactive group content. Key parameters such as color strength, solubility, and fixation rate are rigorously controlled. A Certificate of Analysis (COA) detailing purity, physical properties, and performance characteristics is provided with each shipment to guarantee it meets your specific application 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 heat, sparks, and open flame. The product is light-sensitive and should be stored away from direct light exposure to prevent degradation.

Specification

Item	Specification
Appearance	Orange to reddish-orange powder
Identification (IR)	Conforms to structure
Color Strength	100 ± 3% (Standard)
Moisture Content	≤ 5.0%
Water Solubility	≥ 50 g/L (at 20°C)
pH (1% Solution)	5.5 - 7.5
Dye Content	≥ 80%
Fixation Rate	≥ 70% (on cotton)
Ash Content	≤ 1.0%

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