Description

Pentasodium 5-[[3-[[[4-[[4-[[8-[(3-aminobenzoyl)amino]-1-hydroxy-3,6-disulphonato-2-naphthyl]azo]-3-methoxy-7-sulphonato-1-naphthyl]azo]-3-sulphonatophenyl]amino]carbonyl]phenyl]azo]salicylate is a high-purity, water-soluble azo dye intermediate of significant industrial importance. Its complex polyfunctional structure provides excellent chromophoric properties and binding affinity, making it a critical precursor for high-performance colorants. This compound is essential for manufacturers in the textile, ink, and specialty coatings industries seeking to produce vivid, stable, and complex dyes and pigments.

Application

• Primary Intermediate for Reactive Dyes: A key building block in the synthesis of high-grade reactive dyes for cotton, wool, and nylon fibers, offering excellent wash and light fastness.
• Specialty Ink Production: Used in formulating advanced inks for digital textile printing and security printing applications requiring specific spectral properties.
• Pigment Manufacturing: Serves as a crucial intermediate in the production of high-performance organic pigments for plastics, paints, and coatings.
• Laboratory & Research: Employed in R&D for developing novel chromophores and studying azo dye chemistry and photostability.
• Functional Dye Synthesis: Potential use in creating dyes for non-textile applications, such as in optical data storage or laser dyes, due to its tailored molecular structure.

Basic Information

Item	Details
Product Name	Pentasodium 5-[[3-[[[4-[[4-[[8-[(3-aminobenzoyl)amino]-1-hydroxy-3,6-disulphonato-2-naphthyl]azo]-3-methoxy-7-sulphonato-1-naphthyl]azo]-3-sulphonatophenyl]amino]carbonyl]phenyl]azo]salicylate
CAS No.	70209-90-4
Molecular Formula	C53H32N8Na5O23S5
Molecular Weight	Contact for details
Synonyms	Reactive Dye Intermediate 70209-90-4; C.I. Reactive Black 5 Intermediate; Pentasodium 5-[(3-{[4-({4-[(8-{[(3-Aminophenyl)carbonyl]amino}-1-hydroxy-3,6-disulfo-2-naphthyl)azo]-3-methoxy-7-sulfo-1-naphthyl}azo)-3-sulfophenyl]carbamoyl}phenyl)azo]-2-hydroxybenzoate; Azo Dye Precursor CAS 70209-90-4; 5-[[3-[[[4-[[4-[[8-[(3-Aminobenzoyl)amino]-1-hydroxy-3,6-disulfonato-2-naphthyl]azo]-3-methoxy-7-sulfonato-1-naphthyl]azo]-3-sulfonatophenyl]amino]carbonyl]phenyl]azo]salicylic acid, pentasodium salt
EINECS	Contact for details

Quality Control

Our pentasodium azo dye intermediate is manufactured under a strict quality management system. Every batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation, to ensure it meets precise compositional standards for consistent performance in downstream synthesis. Certificates of Analysis (COA) documenting key parameters are available upon request to support your quality assurance and regulatory compliance needs.

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 tightly sealed after opening to prevent moisture absorption and potential caking or degradation.

Specification

Item	Specification
Appearance	Dark powder or solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Moisture Content	≤ 5.0%
Solubility (in Water)	Clear solution
Sulfated Ash	Contact for details
Heavy Metals (as Pb)	< 20 ppm

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