Description

Disodium 5-[(5-Acetamido-2-Sulphonatophenyl)Azo]-6-Amino-4-Hydroxynaphthalene-2-Sulphonate is a high-purity, water-soluble azo dye intermediate of significant commercial importance. Its value lies in its role as a key precursor for synthesizing reactive and direct dyes, offering excellent color strength and binding properties. This compound is essential for manufacturers in the textile, leather, and specialty chemical industries seeking to produce vibrant and durable colorants.

Application

• Primary intermediate for the synthesis of reactive dyes used in cotton and cellulose fiber dyeing.
• Key building block in the production of direct dyes for paper, leather, and textile applications.
• Used in the manufacture of specialized azo pigments for inks and coatings.
• Intermediate for research and development of novel biologically active compounds and diagnostic reagents.
• Potential use in the synthesis of food colorants (subject to appropriate regulatory approvals and purity grades).
• Employed in analytical chemistry as a chromogenic agent or standard for method development.

Basic Information

Product Name	Disodium 5-[(5-Acetamido-2-Sulphonatophenyl)Azo]-6-Amino-4-Hydroxynaphthalene-2-Sulphonate
CAS No.	6360-05-0
Molecular Formula	C18H13N4Na2O9S2
Molecular Weight	534.42 g/mol
Synonyms	5-[(5-Acetamido-2-sulfophenyl)azo]-6-amino-4-hydroxy-2-naphthalenesulfonic acid disodium salt; C.I. 18050; Acid Orange 12 (related); Azo Dye Intermediate 6360-05-0; 6-Amino-4-hydroxy-5-[(2-sulfo-5-acetamidophenyl)azo]-2-naphthalenesulfonic acid disodium salt; 2-Naphthalenesulfonic acid, 6-amino-4-hydroxy-5-[(2-sulfo-5-acetamidophenyl)azo]-, disodium salt; Disodium 6-amino-4-hydroxy-5-[(2-sulfo-5-acetamidophenyl)azo]-2-naphthalenesulfonate
EINECS	228-873-7

Quality Control

Our production of Disodium 5-[(5-Acetamido-2-Sulphonatophenyl)Azo]-6-Amino-4-Hydroxynaphthalene-2-Sulphonate adheres to stringent quality management protocols. Every batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure consistency and compliance with customer specifications. Certificates of Analysis (COA) detailing purity, impurity profiles, and physical characteristics are provided with each shipment and are available upon request.

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). Keep away from incompatible materials such as strong oxidizing agents. The product is light-sensitive (store away from light).

Specification

Item	Specification
Appearance	Reddish-brown to dark brown powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Water Content	≤ 5.0%
Sulfated Ash	≤ 20.0%
Heavy Metals (as Pb)	≤ 20 ppm
Solubility (in Water)	Clear solution

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