Description

Disodium 7-[[4-[[2-Methyl-4-[(4-Nitrobenzoyl)Amino]Phenyl]Azo]Phenyl]Azo]Naphthalene-1,3-Disulphonate is a high-purity, water-soluble azo dye intermediate of significant commercial importance. This compound is valued for its ability to impart bright and stable color properties in various industrial applications. It is primarily sought after by manufacturers in the textile, ink, and specialty chemical sectors for the synthesis of complex dyes and pigments.

Application

• Primary Intermediate for Dye Synthesis: A key building block in the production of acid dyes, direct dyes, and reactive dyes used for coloring nylon, wool, silk, and paper.
• Textile Industry: Used in the formulation of dyes for textile fibers, providing excellent wash and light fastness properties.
• Ink Manufacturing: Serves as a colorant precursor in the production of inks for packaging, printing, and writing instruments.
• Leather Dyeing: Employed in the synthesis of dyes for the leather tanning and finishing industry.
• Biological Staining: Potential use as a staining agent or intermediate in the preparation of biological stains for microscopy.
• Research & Development: Utilized in chemical research as a model compound for studying azo dye chemistry, photochemistry, and synthesis pathways.

Basic Information

Product Name	Disodium 7-[[4-[[2-Methyl-4-[(4-Nitrobenzoyl)Amino]Phenyl]Azo]Phenyl]Azo]Naphthalene-1,3-Disulphonate
CAS No.	68084-11-7
Molecular Formula	C30H20N6Na2O10S2
Molecular Weight	726.62 g/mol
Synonyms	Acid Orange 156; C.I. 26410; 7-[[4-[[2-Methyl-4-[(4-nitrobenzoyl)amino]phenyl]azo]phenyl]azo]naphthalene-1,3-disulfonic acid disodium salt; Disodium 7-[[4-[[2-methyl-4-[(4-nitrobenzoyl)amino]phenyl]azo]phenyl]azo]-1,3-naphthalenedisulfonate; 1,3-Naphthalenedisulfonic acid, 7-[[4-[[2-methyl-4-[(4-nitrobenzoyl)amino]phenyl]azo]phenyl]azo]-, disodium salt; Azo dye intermediate 68084-11-7; 4-Nitrobenzamide derivative azo dye
EINECS	Contact for details

Quality Control

Our production of Disodium 7-[[4-[[2-Methyl-4-[(4-Nitrobenzoyl)Amino]Phenyl]Azo]Phenyl]Azo]Naphthalene-1,3-Disulphonate 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 profile, 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). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed to prevent absorption of atmospheric moisture. Keep away from incompatible materials such as strong oxidizing agents.

Specification

Item	Specification
Appearance	Orange 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
Solubility	Freely soluble in water

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