Description

6-Amino-5-[[2-Sulpho-4-[[2-(Sulphooxy)Ethyl]Sulphonyl]Phenyl]Azo]Naphthalene-1-Sulphonic Acid, Sodium Salt is a high-purity, water-soluble anionic azo dye intermediate. This compound is valued for its ability to impart bright, stable shades and is a critical building block in the synthesis of reactive and direct dyes. It is primarily required by manufacturers in the textile, ink, and specialty chemical industries for producing high-performance colorants.

Application

• Primary Intermediate for Reactive Dyes: Key precursor for synthesizing reactive dyes used in cotton, wool, and nylon dyeing and printing.
• Direct Dye Synthesis: Used in the manufacture of direct dyes for paper, leather, and cellulosic fibers.
• Specialty Ink Formulations: Employed in the production of inks for jet printing and other high-resolution applications.
• Functional Dye Manufacturing: Serves as an intermediate for dyes used in biological staining and analytical indicators.
• Research & Development: Utilized in academic and industrial R&D for developing novel chromophores and colorant systems.

Basic Information

Product Name	6-Amino-5-[[2-Sulpho-4-[[2-(Sulphooxy)Ethyl]Sulphonyl]Phenyl]Azo]Naphthalene-1-Sulphonic Acid, Sodium Salt
CAS No.	85536-93-2
Molecular Formula	C18H15N3O11S3Na
Molecular Weight	584.55 g/mol
Synonyms	6-Amino-5-[(2-sulfo-4-[(2-sulfooxyethyl)sulfonyl]phenyl)azo]-1-naphthalenesulfonic acid, sodium salt; C.I. Reactive Orange 107 intermediate; Sodium 6-amino-5-[(2-sulfo-4-[(2-sulfooxyethyl)sulfonyl]phenyl)azo]naphthalene-1-sulfonate; Azo dye intermediate 85536-93-2; Reactive dye precursor; 1-Naphthalenesulfonic acid, 6-amino-5-[(2-sulfo-4-[(2-sulfooxyethyl)sulfonyl]phenyl)azo]-, sodium salt
EINECS	Contact for details

Quality Control

Our production of this dye intermediate adheres to strict quality management systems to ensure batch-to-batch consistency and high chemical purity. Every lot is analyzed using advanced techniques like HPLC to confirm identity and assay. A comprehensive Certificate of Analysis (COA) detailing purity, impurity profile, and physical specifications is provided with each 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 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.

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
Solubility in Water	Freely soluble

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