Description

5-Amino-4-Hydroxy-3-[[2-Methoxy-5-Methyl-4-[[8-[(Phenylsulphonyl)Oxy]-3,6-Disulpho-1-Naphthyl]Azo]Phenyl]Azo]Naphthalene-2,7-Disulphonic Acid is a high-purity, complex azo dye intermediate essential for producing vibrant and stable colorants. Its multi-sulfonated, polycyclic structure provides excellent water solubility and strong affinity for various substrates, making it a critical component for achieving specific, high-performance hues. This compound is primarily required by manufacturers in the textile, ink, and specialty chemical industries seeking to develop advanced dyes and pigments with superior fastness properties.

Application

• Primary Intermediate for Reactive Dyes: A key building block in the synthesis of high-grade reactive dyes for cotton, wool, and nylon, offering brilliant shades and excellent wash-fastness.
• Specialty Ink Formulations: Used in the production of inks for jet printing, packaging, and security applications where precise color and stability are paramount.
• Functional Dye Synthesis: Serves as a precursor for dyes used in biological staining, laser applications, and as sensitizers in photographic and electronic materials.
• Research & Development: Employed in academic and industrial R&D laboratories for developing novel chromophores and studying structure-color relationships.
• Pigment Manufacturing: Can be utilized in the creation of lake pigments and other colorants for plastics and coatings.

Basic Information

Product Name	5-Amino-4-Hydroxy-3-[[2-Methoxy-5-Methyl-4-[[8-[(Phenylsulphonyl)Oxy]-3,6-Disulpho-1-Naphthyl]Azo]Phenyl]Azo]Naphthalene-2,7-Disulphonic Acid
CAS No.	117-45-3
Molecular Formula	C34H24N4O16S4
Molecular Weight	872.83 g/mol
Synonyms	Acid Black 210; C.I. 300310; 5-Amino-4-hydroxy-3-((2-methoxy-5-methyl-4-((8-(phenylsulfonyl)oxy)-3,6-disulfo-1-naphthyl)azo)phenyl)azo)naphthalene-2,7-disulfonic acid; 1-Naphthalenesulfonic acid, 5-amino-4-hydroxy-3-((2-methoxy-5-methyl-4-((8-(phenylsulfonyl)oxy)-3,6-disulfo-1-naphthyl)azo)phenyl)azo)-2,7-disulfo-; Reactive Black 5 related intermediate; Azo dye intermediate CAS 117-45-3
EINECS	Contact for details

Quality Control

Our production of 5-Amino-4-Hydroxy-3-[[2-Methoxy-5-Methyl-4-[[8-[(Phenylsulphonyl)Oxy]-3,6-Disulpho-1-Naphthyl]Azo]Phenyl]Azo]Naphthalene-2,7-Disulphonic Acid adheres to a stringent quality management system. Every batch is analyzed to ensure it meets precise specifications for purity, identity, and impurity profiles, consistent with the demands of industrial dye synthesis. Certificates of Analysis (COA) documenting key parameters are provided to guarantee traceability and compliance with your quality standards.

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). This material is hygroscopic (moisture-sensitive); keep the container tightly sealed to prevent absorption of atmospheric moisture.

Specification

Item	Specification
Appearance	Dark brown to black powder or solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Water Content (KF)	≤ 5.0%
Sulfated Ash	≤ 1.0%
Heavy Metals (as Pb)	≤ 20 ppm

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