Description

Dipotassium 6-Amino-4-Hydroxy-5-[[3-[[2-(Sulphonatooxy)Ethyl]Sulphonyl]Phenyl]Azo]Naphthalene-2-Sulphonate is a high-purity, water-soluble azo dye intermediate characterized by its multi-sulfonated structure, which imparts excellent solubility and substantivity. This compound is engineered for applications requiring precise color formation and reliable chemical reactivity in aqueous systems. It is primarily utilized by manufacturers in the textile, ink, and specialty chemical industries for the synthesis of reactive and direct dyes.

Application

• Primary Intermediate for Reactive Dyes: Key building block in the synthesis of high-washfastness reactive dyes for cotton and cellulose fibers.
• Direct Dye Manufacturing: Used in the production of direct dyes for paper, leather, and textile applications.
• Functional Colorants: Serves as a precursor for creating specialized colorants with specific ionic properties for technical applications.
• Research & Development: Employed in R&D laboratories for developing new chromophores and studying azo dye chemistry.
• Inkjet Ink Formulations: Potential use in the development of specialized inks where high solubility and color strength are required.

Basic Information

Product Name	Dipotassium 6-Amino-4-Hydroxy-5-[[3-[[2-(Sulphonatooxy)Ethyl]Sulphonyl]Phenyl]Azo]Naphthalene-2-Sulphonate
CAS No.	97925-90-1
Molecular Formula	C24H19K2N4O12S3
Molecular Weight	753.83 g/mol
Synonyms	6-Amino-4-hydroxy-5-[[3-[[2-(sulphonatooxy)ethyl]sulphonyl]phenyl]azo]naphthalene-2-sulphonic acid, dipotassium salt; C.I. Reactive Orange 107 intermediate; Dipotassium 6-amino-4-hydroxy-5-[(3-((2-sulfooxyethyl)sulfonyl)phenyl)azo]-2-naphthalenesulfonate; Azo dye intermediate 97925-90-1; 5-[[3-[[2-(Sulfooxy)ethyl]sulfonyl]phenyl]azo]-6-amino-4-hydroxy-2-naphthalenesulfonic acid dipotassium salt
EINECS	Contact for details

Quality Control

Our production of Dipotassium 6-Amino-4-Hydroxy-5-[[3-[[2-(Sulphonatooxy)Ethyl]Sulphonyl]Phenyl]Azo]Naphthalene-2-Sulphonate adheres to a stringent quality management system to ensure batch-to-batch consistency and high chemical purity. Each lot is analyzed against rigorous internal specifications, which typically include identity confirmation by spectroscopic methods, assay by HPLC, and control of key impurities. A comprehensive Certificate of Analysis (COA) detailing all test results is provided with every shipment to support your quality assurance protocols.

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 opening to prevent absorption of atmospheric moisture, which can affect product quality and handling properties.

Specification

Item	Specification
Appearance	Dark brown 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

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