Description

Sodium [4-[(4-Nitrophenyl)Azo]Anilino]Methanesulphonate is a specialized azo compound and water-soluble dye intermediate of significant commercial importance. Its primary value lies in its role as a key precursor for synthesizing acid dyes and reactive dyes, which are essential for coloring textiles like nylon, wool, and silk. This chemical is particularly critical for manufacturers and R&D laboratories in the dye, pigment, and specialty chemical industries seeking to develop vibrant and stable colorants.

Application

• Primary Intermediate for Acid Dyes: A crucial building block in the synthesis of acid dyes used for dyeing protein fibers such as wool, silk, and nylon.
• Reactive Dye Synthesis: Used in the production of reactive dyes that form covalent bonds with cellulose fibers like cotton, providing excellent wash-fastness.
• Textile Industry: Enables the creation of a wide spectrum of yellow to orange shades in textile dyeing and printing processes.
• Leather Coloring: Employed in the formulation of dyes for coloring leather goods, offering good penetration and color fastness.
• Paper Dyeing: Suitable for the coloration of paper and specialty papers where water-soluble dyes are required.
• Ink Formulation: Can be utilized in the production of certain types of inks, including those for inkjet printing.
• Research & Development: Serves as a valuable intermediate for chemical research and the development of new chromophores and functional dyes.
• Biological Staining (Potential): May find application as a staining agent in histological studies due to its azo chromophore.

Basic Information

Product Name	Sodium [4-[(4-Nitrophenyl)Azo]Anilino]Methanesulphonate
CAS No.	27152-80-3
Molecular Formula	C13H11N4NaO5S
Molecular Weight	358.31 g/mol
Synonyms	4-[(4-Nitrophenyl)azo]aniline methanesulfonic acid sodium salt; C.I. Acid Yellow 79; Sodium 4-[(4-nitrophenyl)azo]anilinomethanesulfonate; Acid Yellow 79; Benzenesulfonic acid, [[4-[(4-nitrophenyl)azo]phenyl]amino]methyl-, sodium salt; Yellow acid dye intermediate; Azo dye intermediate YA; [[4-[(4-Nitrophenyl)azo]phenyl]amino]methanesulfonic acid sodium salt
EINECS	Contact for details

Quality Control

Our Sodium [4-[(4-Nitrophenyl)Azo]Anilino]Methanesulphonate is manufactured under a stringent quality management system. Each batch undergoes rigorous analytical testing to ensure consistent purity, color strength, and performance as a dye intermediate. Specifications are aligned with industry standards for dye intermediates. A comprehensive Certificate of Analysis (COA) detailing purity, assay, and impurity profiles is provided with every shipment to guarantee traceability and compliance.

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) and light-sensitive; therefore, containers must be kept tightly sealed when not in use to prevent moisture absorption and degradation. Keep away from incompatible materials such as strong oxidizing agents.

Specification

Item	Specification
Appearance	Yellow to orange powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Color Strength	Standard ± 3%
Moisture (KF Titration)	≤ 5.0%
Water Solubility	Clear solution
Ash Content	≤ 1.0%
Heavy Metals (as Pb)	≤ 20 ppm

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