Description

Sodium 4-[[3-[(2,4-Dimethylphenyl)Azo]-2,4-Dihydroxyphenyl]Azo]Benzenesulphonate is a high-purity azo dye intermediate and analytical reagent. This compound is valued for its precise chemical structure and consistent performance in specialized synthesis and colorimetric applications. It is primarily required by manufacturers in the dyes and pigments, analytical chemistry, and research and development sectors for producing specific colorants and as a reagent in chemical analysis.

Application

• Primary Intermediate for Azo Dyes and Pigments: A key building block in the synthesis of specific orange to red shades for textiles, inks, and plastics.
• Analytical Reagent: Used in laboratory settings for colorimetric analysis and as a pH indicator in certain chemical tests.
• Research & Development: Serves as a standard or starting material in chemical research for developing new chromophores and functional materials.
• Specialty Chemical Synthesis: Employed in the production of complex organic molecules where its specific azo and sulfonate groups are required.
• Industrial Colorant Production: Used in the manufacture of colorants for non-food industrial applications where light and wash fastness are important.

Basic Information

Product Name	Sodium 4-[[3-[(2,4-Dimethylphenyl)Azo]-2,4-Dihydroxyphenyl]Azo]Benzenesulphonate
CAS No.	6371-84-2
Molecular Formula	C26H20N4Na2O7S
Molecular Weight	570.50 g/mol
Synonyms	Acid Orange 61; C.I. 18965; Benzenesulfonic acid, 4-[[3-[(2,4-dimethylphenyl)azo]-2,4-dihydroxyphenyl]azo]-, disodium salt; Disodium 4-[[3-[(2,4-dimethylphenyl)azo]-2,4-dihydroxyphenyl]azo]benzenesulphonate; 2,4-Dihydroxy-3-[(2,4-dimethylphenyl)azo]-4-[(4-sulfophenyl)azo]benzenesulfonic acid disodium salt; C.I. Acid Orange 61; Dye Orange V; Amacid Orange L
EINECS	228-915-6

Quality Control

Our production of Sodium 4-[[3-[(2,4-Dimethylphenyl)Azo]-2,4-Dihydroxyphenyl]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 intermediate applications. Certificates of Analysis (COA) detailing assay, impurity profile, and physical characteristics are provided with each shipment to guarantee traceability and consistency 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 (moisture-sensitive) nature, the container must be kept sealed when not in use to prevent absorption of atmospheric moisture, which can affect product performance and handling.

Specification

Item	Specification
Appearance	Orange to red-brown powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 5.0%
Sulfated Ash	Contact for details
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.