Description

4-Hydroxy-3-[[2-Methoxy-5-[[2-(Sulphooxy)Ethyl]Sulphonyl]Phenyl]Azo]Naphthalene-2,7-Disulphonic Acid, Sodium Salt is a high-purity, water-soluble azo dye intermediate of significant commercial importance. Its multi-sulfonated structure provides excellent solubility and binding properties, making it a critical precursor for the synthesis of specialized dyes and pigments. This compound is essential for manufacturers in the textile, ink, and specialty chemical industries seeking to produce vivid, stable colors.

Application

• Primary Intermediate for Reactive Dyes: A key building block in the synthesis of high-performance reactive dyes for cotton and other cellulosic fibers.
• Specialty Pigment Manufacturing: Used in the production of pigments for inks, coatings, and plastics requiring specific color fastness and solubility profiles.
• Textile Dyeing and Printing: Imparts bright, wash-fast hues in industrial textile processing.
• Biological Staining Agent Precursor: Potential use in the synthesis of stains for histological and microbiological applications.
• Research & Development: Serves as a standard or starting material in chemical research focused on dye chemistry and azo compound synthesis.
• Functional Material Synthesis: Can be utilized in creating advanced materials where chromophoric and ionic properties are required.

Basic Information

Product Name	4-Hydroxy-3-[[2-Methoxy-5-[[2-(Sulphooxy)Ethyl]Sulphonyl]Phenyl]Azo]Naphthalene-2,7-Disulphonic Acid, Sodium Salt
CAS No.	85567-14-2
Molecular Formula	C19H15N2Na3O14S4
Molecular Weight	724.56 g/mol (approx.)
Synonyms	Reactive Dye Intermediate; Sodium 4-hydroxy-3-((2-methoxy-5-((2-sulfooxyethyl)sulfonyl)phenyl)azo)naphthalene-2,7-disulfonate; Azo Dye Precursor; C.I. Reactive Orange; 2,7-Naphthalenedisulfonic acid, 4-hydroxy-3-((2-methoxy-5-((2-sulfooxyethyl)sulfonyl)phenyl)azo)-, trisodium salt; Trisodium 4-hydroxy-3-((2-methoxy-5-((2-sulphooxyethyl)sulphonyl)phenyl)azo)naphthalene-2,7-disulphonate
EINECS	Contact for details

Quality Control

Our production of 4-Hydroxy-3-[[2-Methoxy-5-[[2-(Sulphooxy)Ethyl]Sulphonyl]Phenyl]Azo]Naphthalene-2,7-Disulphonic Acid, Sodium Salt adheres to stringent quality management protocols. Every batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation, to ensure consistent performance and specification compliance. Certificates of Analysis (COA) detailing batch-specific results are provided to guarantee traceability and supply chain reliability for our global B2B clients.

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 nature, the container must be kept tightly sealed after each use to prevent moisture absorption, which can affect product stability and performance. Keep away from incompatible materials.

Specification

Item	Specification
Appearance	Reddish-brown to dark brown powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Moisture Content (KF)	≤ 5.0%
Water Solubility	Completely soluble
Heavy Metals (as Pb)	≤ 20 ppm
Related Substances (HPLC)	Total impurities ≤ 3.0%

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