Description

Sodium 4-[[2,4-Dihydroxy-3-(Phenylazo)Phenyl]Azo]Benzenesulphonate is a high-purity azo dye intermediate and analytical reagent, known for its precise chromophoric properties and consistent performance. This compound is critical for industries requiring reliable and vivid colorants or specialized chemical indicators. It is primarily utilized by manufacturers in the dye and pigment, analytical chemistry, and specialty chemical synthesis sectors.

Application

• Primary intermediate for the synthesis of azo dyes and pigments, particularly for shades of orange, red, and brown.
• Key component in the formulation of specialty inks for industrial printing and security applications.
• Used as a colorimetric indicator or reagent in analytical chemistry and laboratory research.
• Employed in the coloration of textiles, leather, and paper products.
• Potential use in the development of light-sensitive materials and photochemical research.
• Acts as a chemical building block for advanced organic synthesis in pharmaceutical and agrochemical research.

Basic Information

Product Name	Sodium 4-[[2,4-Dihydroxy-3-(Phenylazo)Phenyl]Azo]Benzenesulphonate
CAS No.	5850-13-5
Molecular Formula	C18H13N4NaO6S
Molecular Weight	436.37 g/mol
Synonyms	Acid Orange 6; C.I. 14270; Benzenesulfonic acid, 4-[[2,4-dihydroxy-3-(phenylazo)phenyl]azo]-, sodium salt; Sodium 4-[(2,4-dihydroxy-3-phenylazophenyl)azo]benzenesulphonate; 4-[(2,4-Dihydroxy-3-phenylazophenyl)azo]benzenesulfonic Acid Sodium Salt; 3-Phenylazo-2,4-dihydroxy-4'-(sulfophenylazo)azobenzene Sodium Salt; Orange II (related compound, check specific isomer); Azo Dye Intermediate 5850-13-5
EINECS	Contact for details

Quality Control

Our production of Sodium 4-[[2,4-Dihydroxy-3-(Phenylazo)Phenyl]Azo]Benzenesulphonate adheres to stringent quality management protocols. Every batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation, to ensure it meets precise specifications for dye and reagent applications. Certificates of Analysis (COA) documenting all critical parameters are available upon request to support your quality assurance and regulatory compliance needs.

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 sealed to prevent absorption of atmospheric moisture. Keep away from incompatible materials.

Specification

Item	Specification
Appearance	Orange to red-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.