Description

3-[[4-[(4-Amino-2-Chloro-5-Methoxyphenyl)Azo]-6-Sulfo-1-Naphtyl]Azo]-4-Hydroxy-2-Naphthalenesulfonic Acid Disodium Salt is a high-purity, water-soluble disazo dye intermediate of significant commercial importance. This compound is valued for its ability to impart vivid and stable color properties in advanced applications. It is primarily required by manufacturers in the textile, ink, and specialty chemical industries for the synthesis of high-performance dyes and pigments.

Application

• Primary Intermediate for Azo Dyes: A key building block for synthesizing a wide range of orange, red, and brown disazo direct dyes and reactive dyes.
• Textile Dyeing and Printing: Used in the production of dyes for coloring cotton, viscose, silk, and other cellulosic fibers, offering good wash and light fastness.
• Ink Manufacturing: Serves as a precursor for pigments used in inks for packaging, publications, and specialty printing.
• Leather Coloring: Employed in the formulation of dyes for the leather tanning and finishing industry.
• Paper Coloring: Used in the production of dyes for tinting paper and paperboard.
• Research & Development: A crucial compound for chemical R&D focused on developing new chromophores and functional dyes.

Basic Information

Product Name	3-[[4-[(4-Amino-2-Chloro-5-Methoxyphenyl)Azo]-6-Sulfo-1-Naphtyl]Azo]-4-Hydroxy-2-Naphthalenesulfonic Acid Disodium Salt
CAS No.	6252-59-1
Molecular Formula	C27H18ClN5Na2O9S2
Molecular Weight	694.02 g/mol
Synonyms	Direct Orange 26 (Free Acid); C.I. 29150; 3-[[4-[(4-Amino-2-chloro-5-methoxyphenyl)azo]-6-sulfo-1-naphthalenyl]azo]-4-hydroxy-2-naphthalenesulfonic acid disodium salt; Disodium 3-[[4-[(4-amino-2-chloro-5-methoxyphenyl)azo]-6-sulfo-1-naphthyl]azo]-4-hydroxy-2-naphthalenesulfonate; Benzenesulfonic acid, 3-[[4-[(4-amino-2-chloro-5-methoxyphenyl)azo]-6-sulfo-1-naphthalenyl]azo]-4-hydroxy-, disodium salt; Azo dye intermediate 6252-59-1; Direct Orange 26 intermediate
EINECS	Contact for details

Quality Control

Our production of this dye intermediate adheres to strict quality management protocols to ensure batch-to-batch consistency and high purity. The material is characterized using advanced analytical techniques including HPLC, UV-Vis, and FTIR. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with every shipment to support your quality assurance processes.

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 product is hygroscopic (moisture-sensitive); ensure the container is kept tightly sealed to prevent absorption of atmospheric moisture.

Specification

Item	Specification
Appearance	Dark brown to reddish-brown powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Water Content (KF)	≤ 5.0%
pH (1% Solution)	6.0 - 8.0
Heavy Metals (as Pb)	≤ 20 ppm

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