Description

4-(Benzoylamino)-5-Hydroxy-6-[[1-Sulpho-6-[[2-(Sulphooxy)Ethyl]Sulphonyl]-2-Naphthyl]Azo]Naphthalene-1,7-Disulphonic Acid, Potassium Sodium Salt is a high-purity, water-soluble azo dye intermediate of significant industrial importance. This compound is valued for its ability to impart vibrant and stable color properties in demanding applications. It is primarily sought after by manufacturers in the textile, ink, and specialty chemical sectors for the synthesis of high-performance dyes and pigments.

Application

• Textile Dyeing: A key intermediate for the production of reactive and acid dyes used on cotton, wool, silk, and nylon fibers.
• Ink Formulation: Used in the synthesis of pigments for high-quality printing inks, including inks for packaging and security printing.
• Leather Coloring: Employed in the manufacture of dyes for coloring leather goods with excellent fastness properties.
• Paper Dyeing: Suitable for the production of dyes used in specialty paper coloring and coating applications.
• Biological Staining: Potential use as a precursor for histochemical stains and indicators in laboratory settings.
• Research & Development: Serves as a critical building block in chemical research for developing novel chromophores and functional materials.

Basic Information

Item	Details
Product Name	4-(Benzoylamino)-5-Hydroxy-6-[[1-Sulpho-6-[[2-(Sulphooxy)Ethyl]Sulphonyl]-2-Naphthyl]Azo]Naphthalene-1,7-Disulphonic Acid, Potassium Sodium Salt
CAS No.	94158-88-0
Molecular Formula	C35H24KxNayN3O17S4 (x+y=4)
Molecular Weight	Contact for details
Synonyms	Reactive Black 5, Potassium Sodium Salt; C.I. Reactive Black 5; Remazol Black B; Lanasol Black B; Sumifix Black B; Drimarene Black B; Benzenesulfonic acid, 4-[[6-[[2-(sulfooxy)ethyl]sulfonyl]-1-sulfo-2-naphthalenyl]azo]-5-hydroxy-6-[(phenylcarbonyl)amino]-1,7-naphthalenedisulfonic acid, potassium sodium salt; 4-[(4-Benzamido-5-hydroxy-1,7-disulfo-2-naphthyl)azo]-5-hydroxy-6-[(phenylcarbonyl)amino]-1,7-naphthalenedisulfonic acid potassium sodium salt
EINECS	Contact for details

Quality Control

Our production of 4-(Benzoylamino)-5-Hydroxy-6-[[1-Sulpho-6-[[2-(Sulphooxy)Ethyl]Sulphonyl]-2-Naphthyl]Azo]Naphthalene-1,7-Disulphonic Acid, Potassium Sodium Salt adheres to stringent quality management protocols. Every batch undergoes comprehensive analytical testing to ensure consistent purity, color strength, and performance. Certificates of Analysis (COA) detailing assay, impurity profile, and physical specifications are provided to guarantee compliance with your technical requirements.

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). This product is hygroscopic (moisture-sensitive); therefore, the container must be kept tightly sealed to prevent absorption of atmospheric moisture, which can affect product stability and performance.

Specification

Item	Specification
Appearance	Dark blue to black powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 85% (as dye content)
Moisture (KF)	≤ 8.0 %
Water Solubility	Freely soluble
pH (1% Solution)	6.0 - 8.0
Heavy Metals (as Pb)	≤ 20 ppm

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