Description

Sodium n-Acetyl-2-[[2-Hydroxy-3-[(2-Methoxyanilino)Carbonyl]-1-Naphthyl]Azo]Sulphanilate CAS NO 72269-59-1 is a high-purity, synthetic azo dye intermediate characterized by its complex naphthyl-azo-aniline structure. This compound is valued for its ability to impart specific color properties and functional characteristics in advanced material formulations. It is primarily utilized by manufacturers in the specialty dyes and pigments, advanced material science, and research and development sectors seeking consistent performance and batch-to-batch reliability.

Application

• Key intermediate for the synthesis of high-performance azo dyes and pigments used in textiles, inks, and coatings.
• Functional colorant in the development of specialized optical materials and sensors.
• Research chemical for studying azo compound chemistry, photostability, and chromophore behavior.
• Potential use in the formulation of analytical reagents and biological stains for laboratory applications.
• Specialized additive in the production of colored polymers and advanced composites.

Basic Information

Product Name	Sodium n-Acetyl-2-[[2-Hydroxy-3-[(2-Methoxyanilino)Carbonyl]-1-Naphthyl]Azo]Sulphanilate
CAS No.	72269-59-1
Molecular Formula	C26H21N4NaO7S
Molecular Weight	556.52 g/mol
Synonyms	Sodium 2-Acetamido-5-[[2-hydroxy-3-[(2-methoxyphenyl)carbamoyl]-1-naphthyl]diazenyl]benzenesulfonate; C.I. Acid Orange 156; Sodium 5-Acetylamino-2-[[2-hydroxy-3-[(2-methoxyanilino)carbonyl]-1-naphthyl]azo]benzenesulfonate; 5-Acetamido-2-[[2-hydroxy-3-[(2-methoxyphenyl)carbamoyl]-1-naphthalenyl]azo]benzenesulfonic Acid Sodium Salt; Azo Dye Intermediate 72269-59-1; Acid Orange 156 Sodium Salt
EINECS	Contact for details

Quality Control

Our production of Sodium n-Acetyl-2-[[2-Hydroxy-3-[(2-Methoxyanilino)Carbonyl]-1-Naphthyl]Azo]Sulphanilate adheres to stringent quality management protocols. Every batch undergoes comprehensive analytical testing to ensure high purity, consistent chemical identity, and performance reliability. A detailed Certificate of Analysis (COA) providing specifications for assay, impurity profile, and physical characteristics is supplied with each 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 a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after each use to prevent degradation from atmospheric moisture. Keep away from incompatible materials.

Specification

Item	Specification
Appearance	Orange to reddish-brown powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 5.0%
Heavy Metals (as Pb)	≤ 20 ppm
Residual Solvents (GC)	Meets ICH guidelines

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