2,7-Naphthalenedisulfonic acid, 4-hydroxy-5-[[4-[[4-[(2-hydroxyethyl)amino]-6-[[5-hydroxy-6-[(2-methoxy-5-sulfophenyl)azo]-7-sulfo-2-naphthalenyl]amino]-1,3,5-triazin-2-yl]amino]-5-methoxy-2-methylphenyl]azo]-, monosodium salt CAS NO 94944-83-9

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CAS No.:94944-83-9

Grade:Pharmacy Grade

Content:99.9%

Brand:Customizable

Packaging:Customizable

Description

2,7-Naphthalenedisulfonic acid, 4-hydroxy-5-[[4-[[4-[(2-hydroxyethyl)amino]-6-[[5-hydroxy-6-[(2-methoxy-5-sulfophenyl)azo]-7-sulfo-2-naphthalenyl]amino]-1,3,5-triazin-2-yl]amino]-5-methoxy-2-methylphenyl]azo]-, monosodium salt is a high-purity, complex azo dye intermediate essential for producing vibrant and stable colorants. This compound is valued for its ability to impart specific, durable shades in demanding applications, making it a critical component for manufacturers requiring consistent color performance. It is primarily utilized by the textile, ink, and specialty coatings industries for the synthesis of advanced dyes and pigments.

Application

Textile Dyeing: A key intermediate for synthesizing reactive and direct dyes used on cotton, wool, and nylon fibers.
Ink Manufacturing: Used in the production of high-performance inks for digital, packaging, and security printing applications.
Industrial Coatings: Serves as a colorant precursor in coatings for plastics, papers, and specialty surfaces.
Leather Coloring: Employed in the formulation of dyes for the uniform and durable coloring of leather goods.
Research & Development: Used as a standard or building block in chemical research for developing new chromophores and functional dyes.
Specialty Pigments: Acts as an intermediate in the manufacture of complex organic pigments with enhanced lightfastness and weather resistance.

Basic Information


Product Name	2,7-Naphthalenedisulfonic acid, 4-hydroxy-5-[[4-[[4-[(2-hydroxyethyl)amino]-6-[[5-hydroxy-6-[(2-methoxy-5-sulfophenyl)azo]-7-sulfo-2-naphthalenyl]amino]-1,3,5-triazin-2-yl]amino]-5-methoxy-2-methylphenyl]azo]-, monosodium salt
CAS No.	94944-83-9
Molecular Formula	C40H33N11O16S4Na
Molecular Weight	~1083.0 g/mol (Contact for details)
Synonyms	Monosodium 4-hydroxy-5-[[4-[[4-[(2-hydroxyethyl)amino]-6-[[5-hydroxy-6-[(2-methoxy-5-sulfophenyl)azo]-7-sulfo-2-naphthalenyl]amino]-1,3,5-triazin-2-yl]amino]-5-methoxy-2-methylphenyl]azo]-2,7-naphthalenedisulfonate; Reactive Black 5 intermediate; C.I. Reactive Black 5 precursor; Azo dye intermediate 94944-83-9; Tetrasulfonated azo dye intermediate; Sodium 4-hydroxy-5-[(4-{[4-[(2-hydroxyethyl)amino]-6-({5-hydroxy-6-[(2-methoxy-5-sulfophenyl)diazenyl]-7-sulfo-2-naphthyl}amino)-1,3,5-triazin-2-yl]amino}-5-methoxy-2-methylphenyl)diazenyl]-2,7-naphthalenedisulfonate
EINECS	Contact for details

Quality Control

Our 2,7-Naphthalenedisulfonic acid derivative is manufactured under a strict quality management system to ensure batch-to-batch consistency and high purity. Each lot undergoes comprehensive analytical testing, including HPLC for assay and impurity profile and spectroscopic identification. Certificates of Analysis (COA) detailing all specifications are provided with every 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 (moisture-sensitive) nature, the container must be kept tightly sealed after opening 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)	Min. 95%
Water Content	Max. 5.0%
Solubility	Soluble in water
Heavy Metals (as Pb)	Max. 20 ppm