Description

Disodium 4-Hydroxy-7-[[[(5-Hydroxy-7-Sulphonato-2-Naphthyl)Amino]Carbonyl]Amino]-3-(Phenylazo)Naphthalene-2-Sulphonate is a high-purity, water-soluble azo dye intermediate of significant industrial importance. Its complex molecular structure provides excellent chromophoric properties, making it a critical precursor for synthesizing high-performance dyes and pigments. This compound is essential for manufacturers in the textile, ink, and specialty chemical sectors seeking to produce vivid and stable colors.

Application

• Primary Intermediate for Reactive Dyes: A key building block in the synthesis of high-quality reactive dyes for cotton and other cellulosic fibers.
• Pigment Manufacturing: Used in the production of organic pigments for inks, plastics, and coatings, offering good lightfastness.
• Textile Colorants: Serves as a crucial component in dye formulations for the textile industry, providing a range of bright hues.
• Research & Development: Employed in chemical R&D for developing new chromophores and studying azo dye chemistry.
• Specialty Chemical Synthesis: Utilized as an intermediate for creating specialized chemicals used in analytical reagents or biological stains.

Basic Information

Product Name	Disodium 4-Hydroxy-7-[[[(5-Hydroxy-7-Sulphonato-2-Naphthyl)Amino]Carbonyl]Amino]-3-(Phenylazo)Naphthalene-2-Sulphonate
CAS No.	65152-25-2
Molecular Formula	C27H18N4Na2O10S2
Molecular Weight	660.56 g/mol
Synonyms	Reactive Dye Intermediate; C.I. Reactive Red 141; Disodium 4-hydroxy-3-(phenylazo)-7-[[(5-hydroxy-7-sulfo-2-naphthyl)carbamoyl]amino]-2-naphthalenesulfonate; 65152-25-2; 4-Hydroxy-7-[[[(5-hydroxy-7-sulphonato-2-naphthyl)amino]carbonyl]amino]-3-(phenylazo)naphthalene-2-sulphonate, disodium salt; Disodium 7-[[(5-hydroxy-7-sulfo-2-naphthyl)carbamoyl]amino]-4-hydroxy-3-(phenylazo)-2-naphthalenesulfonate
EINECS	Contact for details

Quality Control

Our production of Disodium 4-Hydroxy-7-[[[(5-Hydroxy-7-Sulphonato-2-Naphthyl)Amino]Carbonyl]Amino]-3-(Phenylazo)Naphthalene-2-Sulphonate adheres to stringent quality management systems to ensure batch-to-batch consistency and high purity. The material is characterized and tested using advanced analytical techniques including HPLC and spectrophotometry. Certificates of Analysis (COA) detailing purity, identity, and impurity profiles are 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 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 performance.

Specification

Item	Specification
Appearance	Dark red to brown powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Moisture Content	≤ 5.0%
Water Solubility	Freely soluble
Heavy Metals (as Pb)	≤ 20 ppm

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