Description

1,7-Naphthalenedisulfonic acid, 4-(benzoylamino)-6-[[5-[[ (5-chloro-2,6-difluoro-4-pyrimidinyl)amino]methyl ]-1-sulfo-2-naphthalenyl]azo]-5-hydroxy-, trisodium salt is a high-purity, synthetic organic dye intermediate of significant commercial importance. This compound is valued for its ability to impart specific, stable color properties in advanced applications. It is primarily required by manufacturers in the textile dyeing, specialty ink formulation, and high-performance pigment industries seeking reliable and consistent chromophores.

Application

• Key intermediate for the synthesis of reactive dyes used in cotton and cellulose fiber dyeing.
• Production of specialized pigments for inks, coatings, and plastics requiring high color strength and stability.
• Manufacturing of functional dyes for non-textile applications, such as in optical data storage or laser marking.
• Research and development of novel chromophores for advanced materials science and photonic applications.
• Potential use in the formulation of biological stains or indicators for analytical chemistry and diagnostics.

Basic Information

Product Name	1,7-Naphthalenedisulfonic acid, 4-(benzoylamino)-6-[[5-[[ (5-chloro-2,6-difluoro-4-pyrimidinyl)amino]methyl ]-1-sulfo-2-naphthalenyl]azo]-5-hydroxy-, trisodium salt
CAS No.	73019-06-4
Molecular Formula	C38H22ClF2N6Na3O12S3
Molecular Weight	Approx. 1010.23 g/mol (Contact for exact details)
Synonyms	Reactive Black 5 (related dye class intermediate); Trisodium 4-(benzamido)-6-[[5-[[(5-chloro-2,6-difluoro-4-pyrimidinyl)amino]methyl]-1-sulfo-2-naphthyl]azo]-5-hydroxy-1,7-naphthalenedisulfonate; Azo dye intermediate based on naphthalene trisulfonate; CI Reactive Black 5 precursor; 5-Chloro-2,6-difluoropyrimidine coupled naphthalene dye intermediate; Benzoylamino hydroxy azo naphthalene trisulfonate; Black 5 dye intermediate
EINECS	Contact for details

Quality Control

Our production of this dye intermediate adheres to strict quality management systems to ensure batch-to-batch consistency and purity. Every lot undergoes comprehensive analytical testing, including HPLC for purity, spectrophotometry for color value, and elemental analysis. A detailed Certificate of Analysis (COA) documenting identity, purity, 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 (moisture-sensitive) nature, the container must be kept sealed to prevent absorption of atmospheric moisture, which can affect product performance.

Specification

Item	Specification
Appearance	Dark blue to black powder or solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Color Strength	≥ 98% of standard
Moisture (KF)	≤ 5.0%
Solubility (in Water)	Clear solution at 1%
Heavy Metals (as Pb)	≤ 20 ppm

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