Description

2,7-Naphthalenedisulfonic Acid, 5-(Benzoylamino)-3-[[5-[[(5-Chloro-2,6-Difluoro-4-Pyrimidinyl)Amino]Methyl]-1-Sulfo-2-Naphthalenyl]Azo]-4-Hydroxy-, Trisodium Salt is a complex, high-purity synthetic dye intermediate characterized by its multi-sulfonated, azo-linked naphthalene and pyrimidine structure. This compound matters for its role as a key precursor in the production of specialized, high-performance dyes and pigments, offering excellent color fastness and solubility properties. It is primarily needed by manufacturers in the textile, ink, and specialty coatings industries seeking to develop advanced colorants with specific functional characteristics.

Application

• Primary Intermediate for Reactive Dyes: A critical building block in the synthesis of high-grade reactive dyes for cotton and other cellulose fibers.
• Specialty Pigment Manufacturing: Used in the production of complex organic pigments for automotive paints, industrial coatings, and plastics requiring high durability.
• Functional Dye Synthesis: Serves as a precursor for dyes used in ink-jet printing, particularly those requiring specific light-fastness and water-resistance properties.
• Research & Development: Employed in chemical R&D for developing novel chromophores and studying azo dye chemistry and photophysical properties.
• Textile Printing Inks: A key component in formulating specialized inks for digital textile printing applications.

Basic Information

Item	Detail
Product Name	2,7-Naphthalenedisulfonic Acid, 5-(Benzoylamino)-3-[[5-[[(5-Chloro-2,6-Difluoro-4-Pyrimidinyl)Amino]Methyl]-1-Sulfo-2-Naphthalenyl]Azo]-4-Hydroxy-, Trisodium Salt
CAS No.	72894-29-2
Molecular Formula	C32H20ClF2N6Na3O11S3
Molecular Weight	923.13 g/mol (approx.)
Synonyms	Trisodium 5-(benzoylamino)-3-{[5-({[(5-chloro-2,6-difluoropyrimidin-4-yl)amino]methyl})-1-sulphonatonaphthalen-2-yl]azo}-4-hydroxynaphthalene-2,7-disulphonate; C.I. Reactive Blue 268; Reactive Blue 268; 5-(Benzoylamino)-3-[[5-[[(5-chloro-2,6-difluoro-4-pyrimidinyl)amino]methyl]-1-sulfo-2-naphthalenyl]azo]-4-hydroxy-2,7-naphthalenedisulfonic acid trisodium salt; Azo dye intermediate 72894-29-2; 72894-29-2 (CAS)
EINECS	Contact for details

Quality Control

Our production of this advanced dye intermediate adheres to strict quality management systems, ensuring batch-to-batch consistency for your synthesis processes. Quality is verified through comprehensive analytical methods including HPLC for purity and identity confirmation and titration for assay determination. A Certificate of Analysis (COA) detailing purity, impurity profile, and physical specifications 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 a controlled room temperature (15-25°C). Due to its hygroscopic nature, the container must be kept tightly sealed after opening to minimize exposure to atmospheric moisture. Keep away from incompatible materials.

Specification

Item	Specification
Appearance	Dark blue to violet powder or crystalline solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Purity (HPLC Area %)	≥ 98.0%
Water Content (KF)	≤ 5.0%
Heavy Metals (as Pb)	≤ 20 ppm
Solubility (in Water)	Freely soluble

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