Description

Disodium 5-[[4'-[(7-Amino-1-Hydroxy-3-Sulphonato-2-Naphthyl)Azo]-3,3'-Dimethyl[1,1'-Biphenyl]-4-Yl]Azo]Salicylate is a high-purity, water-soluble azo dye intermediate of significant commercial importance. This compound is valued for its ability to impart vibrant and stable coloration, making it a critical precursor in the synthesis of specialized dyes and pigments. It is primarily sought after by manufacturers in the textile, ink, and specialty coatings industries who require consistent quality and reliable supply for their production processes.

Application

This advanced azo compound serves as a key building block in various colorant manufacturing processes. Its primary and related applications include:

• Primary Intermediate for Reactive Dyes: Synthesis of high-performance reactive dyes for cotton and other cellulosic fibers.
• Direct Dye Production: Manufacturing of direct dyes used in paper coloring and textile applications.
• Specialty Ink Formulations: A key component in producing pigments for high-quality printing inks, including inks for packaging and security printing.
• Industrial Pigments: Used in the creation of pigments for plastics, paints, and specialty coatings requiring specific color fastness.
• Research & Development: Serves as a standard or experimental compound in R&D labs for developing new colorants and studying azo chemistry.

Basic Information

Product Name	Disodium 5-[[4'-[(7-Amino-1-Hydroxy-3-Sulphonato-2-Naphthyl)Azo]-3,3'-Dimethyl[1,1'-Biphenyl]-4-Yl]Azo]Salicylate
CAS No.	68092-52-4
Molecular Formula	C31H23N5Na2O8S
Molecular Weight	679.59 g/mol
Synonyms	Acid Red 337; C.I. 17215; Disodium 5-[(4'-[(7-amino-1-hydroxy-3-sulphonato-2-naphthyl)azo]-3,3'-dimethylbiphenyl-4-yl)azo]salicylate; 5-[[4'-[(7-Amino-1-hydroxy-3-sulfo-2-naphthyl)azo]-3,3'-dimethyl[1,1'-biphenyl]-4-yl]azo]-2-hydroxybenzoic Acid Disodium Salt; Benzoic acid, 5-[[4'-[(7-amino-1-hydroxy-3-sulfo-2-naphthyl)azo]-3,3'-dimethyl[1,1'-biphenyl]-4-yl]azo]-2-hydroxy-, disodium salt; Azo Dye Intermediate 68092-52-4
EINECS	Contact for details

Quality Control

Our production of Disodium 5-[[4'-[(7-Amino-1-Hydroxy-3-Sulphonato-2-Naphthyl)Azo]-3,3'-Dimethyl[1,1'-Biphenyl]-4-Yl]Azo]Salicylate adheres to stringent quality management protocols to ensure batch-to-batch consistency and reliability. All products undergo rigorous quality testing, including advanced chromatographic analysis, to ensure compliance with industry standards. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with each shipment and is available upon request.

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). This material is hygroscopic (moisture-sensitive) and light-sensitive; therefore, containers must be kept tightly sealed when not in use to prevent degradation from moisture absorption and light exposure.

Specification

Item	Specification
Appearance	Reddish-brown to dark 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.