Description

Procion Yellow Mx-R is a highly reactive, dichlorotriazine-based fiber-reactive dye. This compound is valued for its ability to form covalent bonds with cellulosic fibers, resulting in excellent wash and light fastness properties. It is primarily used by textile manufacturers and dye producers for coloring cotton, viscose, and other natural fibers. The product is supplied as a high-purity powder to ensure consistent and vibrant coloration in demanding industrial applications.

Application

• Textile Dyeing: Primary application for exhaust and continuous dyeing of cotton, linen, and viscose fabrics.
• Yarn Dyeing: Used for coloring cellulosic yarns in hank, package, and beam dyeing processes.
• Printing Pastes: A key component in the formulation of printing pastes for textile screen and rotary printing.
• Leather Coloring: Employed for dyeing leather goods where high fastness properties are required.
• Paper Staining: Used in specialty paper production for achieving specific color shades.
• Biomolecule Labeling: In research settings, the reactive chlorotriazine group can be utilized for labeling proteins and other biomolecules.
• Dye Intermediate: Serves as a chemical intermediate for the synthesis of more complex reactive dye structures.

Basic Information

Product Name	Procion Yellow Mx-R
CAS No.	3627-05-2
Molecular Formula	C19H10Cl2N6Na2O7S2
Molecular Weight	627.34 g/mol
Synonyms	Reactive Yellow 4; C.I. Reactive Yellow 4; Procion Yellow MX-R; Reactive Golden Yellow Mx-R; 2,7-Naphthalenedisulfonic acid, 5-[[4-chloro-6-[(3-sulfophenyl)amino]-1,3,5-triazin-2-yl]amino]-4-hydroxy-3-[(4-methoxyphenyl)azo]-, disodium salt; Lanasol Yellow 4G; Remazol Golden Yellow G; Kayacion Yellow P-4G
EINECS	222-849-9

Quality Control

Our Procion Yellow Mx-R is manufactured under a strict quality management system. Every batch undergoes comprehensive analytical testing, including HPLC for purity and shade consistency, spectrophotometric analysis for strength, and tests for insoluble matter and solubility. A Certificate of Analysis (COA) detailing all test results is provided with each shipment to ensure it meets the specifications required for high-performance textile applications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). Due to its hygroscopic nature, the container must be kept tightly sealed after use to prevent moisture absorption, which can affect performance. Keep away from incompatible materials.

Specification

Item	Specification
Appearance	Yellow to orange powder
Identification (IR)	Conforms to standard
Color Strength	≥ 98% (vs. Standard)
Purity (HPLC)	≥ 95.0%
Moisture Content	≤ 5.0%
Water Insoluble Matter	≤ 0.1%
pH (1% Solution)	6.0 - 8.0
Shade	Within agreed tolerance

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