Description

4-[[4-[[4-[Bis(2-Hydroxyethyl)Amino]Phenyl]Azo]Phenyl]Azo]-3-Hydroxy-2-Naphthoic Acid is a high-purity, synthetic azo dye intermediate known for its distinct chromophoric properties. Its value lies in its role as a critical precursor for producing vibrant and stable colorants, particularly in demanding technical applications. This compound is essential for manufacturers in the textile, ink, and specialty polymer industries seeking to develop high-performance pigments and dyes.

Application

• Textile Dye Intermediate: A key precursor for synthesizing acid and direct dyes used for coloring nylon, silk, wool, and paper.
• Inkjet and Printing Ink Pigment: Used in the manufacture of high-quality pigments for inks requiring excellent color strength and stability.
• Functional Polymer Colorant: Imparts color to engineering plastics and synthetic fibers where heat and light fastness are critical.
• Liquid Crystal Display (LCD) Color Filter Dye: Serves as a raw material in the production of dyes for advanced electronic display applications.
• Biological Staining Agent: Potential use as a staining dye in histology and microscopy due to its specific affinity.
• Research & Development: Employed in chemical research for developing novel chromophores and studying azo dye chemistry.

Basic Information

Product Name	4-[[4-[[4-[Bis(2-Hydroxyethyl)Amino]Phenyl]Azo]Phenyl]Azo]-3-Hydroxy-2-Naphthoic Acid
CAS No.	15773-36-1
Molecular Formula	C27H25N5O5
Molecular Weight	499.52 g/mol
Synonyms	3-Hydroxy-4-((4-((4-(bis(2-hydroxyethyl)amino)phenyl)azo)phenyl)azo)-2-naphthoic Acid; C.I. 26360; Solvent Red 164; Azoic Coupling Component 21; 4-[[4-[[4-[Bis(2-hydroxyethyl)amino]phenyl]azo]phenyl]azo]-3-hydroxy-2-naphthalenecarboxylic acid; 2-Naphthalenecarboxylic acid, 4-[[4-[[4-[bis(2-hydroxyethyl)amino]phenyl]azo]phenyl]azo]-3-hydroxy-; 1-Hydroxy-2-naphthoic acid-4-[(4'-N,N-bis(2-hydroxyethyl)amino)phenylazo]phenylazo; 4-[(4-{[4-(Bis-2-hydroxyethylamino)phenyl]azo}phenyl)azo]-3-hydroxy-2-naphthoic acid
EINECS	Contact for details

Quality Control

Our 4-[[4-[[4-[Bis(2-Hydroxyethyl)Amino]Phenyl]Azo]Phenyl]Azo]-3-Hydroxy-2-Naphthoic Acid is manufactured under a strict quality management system. Each batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation, to ensure it meets precise specifications for dye intermediate applications. Certificates of Analysis (COA) documenting purity, heavy metal content, and other critical parameters are provided with every shipment.

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). Keep away from heat sources and incompatible materials. Due to its light-sensitive nature, containers should be kept in the original packaging or opaque containers until use.

Specification

Item	Specification
Appearance	Dark red to brown powder
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 1.0%
Sulfated Ash	≤ 0.5%
Heavy Metals (as Pb)	≤ 20 ppm
Solubility (Test)	Soluble in DMF, DMSO; sparingly soluble in ethanol

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