Description

Sodium 3-[[2,4-Dihydroxy-3-[(4-Nitrophenyl)Azo]Phenyl]Azo]-4-Hydroxybenzenesulphonate is a high-purity azo dye intermediate essential for producing vibrant and stable colorants. This compound matters for its role in synthesizing specialized dyes with excellent light and wash fastness properties. It is primarily needed by manufacturers in the textile, ink, and specialty coatings industries seeking reliable and consistent color performance.

Application

• Primary intermediate for the synthesis of high-performance azo dyes and pigments.
• Key component in the production of textile dyes for cotton, wool, and synthetic fibers.
• Used in formulating printing inks for packaging and commercial printing applications.
• Manufacture of colorants for leather finishing and paper coloration.
• Potential use in the research and development of functional dyes for optical and electronic applications.
• Intermediate for specialty colorants in industrial coatings and plastics.

Basic Information

Product Name	Sodium 3-[[2,4-Dihydroxy-3-[(4-Nitrophenyl)Azo]Phenyl]Azo]-4-Hydroxybenzenesulphonate
CAS No.	93939-97-0
Molecular Formula	C18H11N5NaO8S
Molecular Weight	480.37 g/mol
Synonyms	Benzenesulfonic acid, 3-[[2,4-dihydroxy-3-[(4-nitrophenyl)azo]phenyl]azo]-4-hydroxy-, monosodium salt; C.I. 27290; Acid Orange 67; Sodium 3-[(2,4-dihydroxy-3-[(4-nitrophenyl)diazenyl]phenyl)diazenyl]-4-hydroxybenzenesulfonate; 4-Hydroxy-3-[(2-hydroxy-5-[(4-nitrophenyl)azo]phenyl)azo]benzenesulfonic acid sodium salt; Azo dye intermediate 93939-97-0; 3-[(2,4-Dihydroxy-3-[(4-nitrophenyl)azo]phenyl)azo]-4-hydroxybenzenesulfonic acid sodium salt
EINECS	Contact for details

Quality Control

Our production of Sodium 3-[[2,4-Dihydroxy-3-[(4-Nitrophenyl)Azo]Phenyl]Azo]-4-Hydroxybenzenesulphonate adheres to stringent quality management protocols. Every batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure consistent performance and specification compliance. Certificates of Analysis (COA) detailing all relevant parameters are available upon request to support your quality assurance processes.

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 degradation from atmospheric moisture.

Specification

Item	Specification
Appearance	Orange to brown powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 5.0%
Heavy Metals (as Pb)	≤ 20 ppm
Water Solubility	Freely soluble

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