Description

Tetrasodium 3-[(2,5-disulfophenyl)azo]-5-[[4- [[3-[[[2-(ethenylsulfonyl)ethyl] amino]carbo- nyl]phenyl]amino]-6-fluoro-1,3,5-triazin-2- yl]amino]-4-hydroxy-2,7-naphthalenedisulfonate is a high-performance, reactive dye intermediate belonging to the class of fluorotriazinyl azo compounds. This chemical is engineered to deliver superior color fastness and covalent bonding properties in demanding textile applications. It is a critical component for manufacturers of reactive dyes targeting the production of brilliant and durable shades on cellulosic fibers like cotton and viscose.

Application

• Primary Intermediate for Reactive Dyes: Serves as the key chromophore and reactive component in the synthesis of high-grade reactive dyes for textiles.
• Cellulosic Fiber Dyeing: Specifically engineered for dyeing and printing on cotton, linen, hemp, and regenerated cellulose fibers (e.g., viscose, lyocell).
• High-Washfastness Dyes: Used to manufacture dyes that exhibit excellent resistance to washing, perspiration, and domestic bleaching.
• Textile Ink Formulation: A vital ingredient in the production of inks for digital textile printing, ensuring vibrant and stable colors.
• Leather Coloring: Applied in the formulation of dyes for leather finishing to achieve deep, uniform, and fast colors.
• Paper Dyeing: Utilized in specialty paper coloring processes where high color value and stability are required.

Basic Information

Product Name	Tetrasodium 3-[(2,5-disulfophenyl)azo]-5-[[4- [[3-[[[2-(ethenylsulfonyl)ethyl] amino]carbo- nyl]phenyl]amino]-6-fluoro-1,3,5-triazin-2- yl]amino]-4-hydroxy-2,7-naphthalenedisulfonate
CAS No.	130201-56-8
Molecular Formula	C31H20N8Na4O16S4F
Molecular Weight	Contact for details
Synonyms	Reactive Red 195; C.I. Reactive Red 195; Tetrasodium 8-[[4-chloro-6-[[3-[[2-(sulfatoethyl)sulfonyl]phenyl]amino]-1,3,5-triazin-2-yl]amino]-1-hydroxy-3,6-disulfo-2-naphthalenyl]azo]naphthalene-1,5-disulfonate (alternate representation); Vinylsulfone reactive dye intermediate; Fluorotriazine azo dye; Remazol Red RB type; Levafix Red CA type; DyStar Reactive Red
EINECS	Contact for details

Quality Control

Our production of this reactive dye intermediate adheres to strict quality management systems to ensure batch-to-batch consistency and performance reliability. Every lot is analyzed for critical parameters including purity, reactive group content, and inorganic salt levels. A comprehensive Certificate of Analysis (COA) detailing assay (HPLC), identification (IR), and impurity profiles is provided with each shipment to support your quality assurance protocols.

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). Due to its hygroscopic nature, the container must be kept tightly sealed after initial use to prevent moisture absorption, which can affect reactivity and handling properties.

Specification

Item	Specification
Appearance	Dark red to brown powder
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	Min. 90%
Moisture Content	Max. 5.0%
Water Solubility	Freely soluble
Inorganic Salt (as Sulfate)	Max. 10.0%
Heavy Metals (as Pb)	Max. 20 ppm

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