Description

Tetrasodium 7-[[6-[(5-Chloro-2,6-Difluoro-4-Pyrimidinyl)Amino]-1-Hydroxy-3-Sulphonato-2-Naphthyl]Azo]Naphthalene-1,3,6-Trisulphonate is a high-purity, water-soluble reactive dye intermediate of significant commercial importance. This compound is valued for its ability to form strong covalent bonds with textile fibers, resulting in excellent wash and light fastness properties. It is primarily sought after by manufacturers in the textile dyeing and specialty chemical synthesis industries for producing vibrant and durable colorants.

Application

• Primary Intermediate for Reactive Dyes: Key building block in the synthesis of high-performance reactive dyes for cotton, viscose, and other cellulosic fibers.
• Textile Coloration: Used in exhaust, pad-batch, and continuous dyeing processes to achieve brilliant shades with superior fastness.
• Specialty Pigment Manufacturing: Serves as a precursor in the production of certain high-value organic pigments and colorants.
• Research & Development: Utilized in chemical R&D for developing novel chromophores and studying azo dye chemistry.
• Ink Formulation: Potential use in the formulation of specialized inks requiring specific color properties and stability.

Basic Information

Product Name	Tetrasodium 7-[[6-[(5-Chloro-2,6-Difluoro-4-Pyrimidinyl)Amino]-1-Hydroxy-3-Sulphonato-2-Naphthyl]Azo]Naphthalene-1,3,6-Trisulphonate
CAS No.	71720-91-7
Molecular Formula	C28H12ClF2N6Na4O13S4
Molecular Weight	Contact for details
Synonyms	Reactive Red 238; C.I. Reactive Red 238; Tetrasodium 8-[(4,6-dichloro-1,3,5-triazin-2-yl)amino]-1-hydroxy-3,6-disulfo-2-naphthylazo]naphthalene-1,3,5-trisulfonate (related); 5-Chloro-2,6-difluoro-4-pyrimidinyl azo dye intermediate; Azo pyrimidine dye intermediate; Trisulfonated azo dye intermediate; Sodium 7-[[6-[(5-chloro-2,6-difluoro-4-pyrimidinyl)amino]-1-hydroxy-3-sulfo-2-naphthyl]azo]-1,3,6-naphthalenetrisulfonate
EINECS	Contact for details

Quality Control

Our production of this reactive dye intermediate adheres to stringent quality control protocols to ensure batch-to-batch consistency and high chemical purity. Quality is verified through advanced analytical techniques including HPLC, spectrophotometry, and titration methods. A Certificate of Analysis (COA) detailing purity, impurity profile, and physical specifications is provided with each shipment to support your quality assurance processes.

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 to prevent moisture absorption, which can affect product performance. Keep away from incompatible materials.

Specification

Item	Specification
Appearance	Dark red to brown powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 95.0%
Moisture Content	≤ 5.0%
Water Solubility	Clear solution
Heavy Metals	≤ 20 ppm

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