Description

m-[[4-[[4-[Bis(2-Hydroxyethyl)Amino]Phenyl]Azo]-1-Naphthyl]Azo]Benzenesulphonic Acid is a high-purity, synthetic azo dye intermediate characterized by its complex molecular structure. This compound is valued for its role as a critical precursor in the production of specialized dyes and pigments, offering excellent color properties and chemical reactivity. It is primarily required by manufacturers in the textile, ink, and specialty coatings industries for developing vibrant and stable colorants.

Application

• Primary intermediate for the synthesis of acid dyes and direct dyes used in textile printing and dyeing.
• Key component in the manufacture of specialized inks for high-performance printing applications.
• Used in the production of pigments for industrial coatings and plastics coloration.
• Research and development of novel functional dyes for non-textile applications.
• Potential use as a colorimetric reagent or indicator in analytical chemistry.

Basic Information

Product Name	m-[[4-[[4-[Bis(2-Hydroxyethyl)Amino]Phenyl]Azo]-1-Naphthyl]Azo]Benzenesulphonic Acid
CAS No.	58764-34-4
Molecular Formula	C28H28N6O6S
Molecular Weight	576.62 g/mol
Synonyms	Acid Orange 156; C.I. 26410; m-[[4-[[4-[Bis(2-hydroxyethyl)amino]phenyl]azo]-1-naphthyl]azo]benzenesulfonic acid; Benzenesulfonic acid, m-[[4-[[4-[bis(2-hydroxyethyl)amino]phenyl]azo]-1-naphthyl]azo]-; 3-({4-[(E)-{4-[Bis(2-hydroxyethyl)amino]phenyl}diazenyl]-1-naphthyl}diazenyl)benzenesulfonic acid; Azo dye intermediate 58764-34-4; 4-[[4-(Bis(2-hydroxyethyl)amino)phenyl]azo]-1-naphthylazo-benzenesulfonic acid
EINECS	Contact for details

Quality Control

Our production of m-[[4-[[4-[Bis(2-Hydroxyethyl)Amino]Phenyl]Azo]-1-Naphthyl]Azo]Benzenesulphonic Acid adheres to stringent quality management protocols. Every batch undergoes rigorous analytical testing to ensure high purity, consistent performance, and traceability. Certificates of Analysis (COA) detailing identity, purity, and impurity profiles 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 to prevent absorption of atmospheric moisture, which can affect product stability and performance.

Specification

Item	Specification
Appearance	Dark brown to reddish-brown powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 5.0%
Sulfated Ash	≤ 1.0%
Heavy Metals (as Pb)	≤ 20 ppm
Related Substances (HPLC)	Individual impurity ≤ 1.0%; Total impurities ≤ 3.0%

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