Description

5-(Acetylamino)-3-[[4-[[3-[[[4-[2,4-Bis(tert-Pentyl)Phenoxy]Butyl]Amino]Carbonyl]-4-Hydroxy-1-Naphthyl]Oxy]Phenyl]Azo]-4-Hydroxynaphthalene-2,7-Disulphonic Acid CAS NO 63217-28-7 is a complex, high-molecular-weight azo dye intermediate characterized by its naphthalene disulphonic acid backbone and multiple functional groups. This compound matters for its role as a critical precursor in synthesizing specialized, high-performance dyes and pigments, particularly those requiring excellent lightfastness and color strength. Industrial manufacturers and R&D laboratories in the textile, ink, and specialty coatings sectors need this chemical to develop advanced colorants for demanding applications.

Application

• Primary Intermediate for High-Performance Dyes: Serves as a key building block in the synthesis of complex azo dyes, especially for textile fibers like polyester and nylon.
• Specialty Pigment Manufacturing: Used in the production of organic pigments for inks, plastics, and coatings where superior color properties are required.
• Research & Development: Essential for chemical R&D focused on creating novel dye structures with enhanced solubility, stability, or specific spectral characteristics.
• Functional Dye Synthesis: Potential use in developing dyes for non-textile applications, such as sensitizers for dye-sensitized solar cells (DSSCs) or other optoelectronic materials.

Basic Information

Item	Details
Product Name	5-(Acetylamino)-3-[[4-[[3-[[[4-[2,4-Bis(tert-Pentyl)Phenoxy]Butyl]Amino]Carbonyl]-4-Hydroxy-1-Naphthyl]Oxy]Phenyl]Azo]-4-Hydroxynaphthalene-2,7-Disulphonic Acid
CAS No.	63217-28-7
Molecular Formula	C55H64N4O11S2
Molecular Weight	1021.25 g/mol
Synonyms	5-Acetamido-3-((4-((3-((4-(2,4-di-tert-pentylphenoxy)butyl)carbamoyl)-4-hydroxynaphthalen-1-yl)oxy)phenyl)diazenyl)-4-hydroxynaphthalene-2,7-disulfonic acid; C.I. Disperse Red 277 intermediate; Azo dye intermediate 63217-28-7; 1-Naphthalenesulfonic acid, 5-(acetylamino)-3-[[4-[[3-[[[4-[2,4-bis(1,1-dimethylpropyl)phenoxy]butyl]amino]carbonyl]-4-hydroxy-1-naphthalenyl]oxy]phenyl]azo]-4-hydroxy-2,7-disulfo-; Disperse Red 277 precursor
EINECS	Contact for details

Quality Control

Our 5-(Acetylamino)-3-[[4-[[3-[[[4-[2,4-Bis(tert-Pentyl)Phenoxy]Butyl]Amino]Carbonyl]-4-Hydroxy-1-Naphthyl]Oxy]Phenyl]Azo]-4-Hydroxynaphthalene-2,7-Disulphonic Acid is produced under a strict quality management system. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure consistent quality and performance as a dye intermediate. Certificates of Analysis (COA) detailing purity, impurity profile, and other critical parameters are available upon request 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). This compound is light-sensitive (store away from light) and hygroscopic (moisture-sensitive); therefore, containers must be kept sealed to minimize exposure to moisture and atmospheric oxygen.

Specification

Item	Specification
Appearance	Dark red to brown powder or solid
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 95.0% (Area %)
Water Content (KF)	≤ 3.0%
Sulfated Ash	≤ 0.5%
Heavy Metals (as Pb)	≤ 20 ppm

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