Description

Trisodium 5,5'-[(2-Sulphonato-1,4-Phenylene)Bis(Azo)]Bis(Salicylate) CAS NO 72230-95-6 is a high-purity, water-soluble azo dye intermediate and analytical reagent. This compound is valued for its precise chemical structure and consistent performance in demanding synthesis and detection applications. It is primarily required by manufacturers in the dye and pigment industry, as well as by research and quality control laboratories for specialized chemical analysis.

Application

• As a key intermediate in the synthesis of high-value azo dyes and pigments for textiles, inks, and plastics.
• As a chromogenic agent or standard in analytical chemistry for method development and calibration.
• In the formulation of specialized indicator solutions for laboratory and industrial process monitoring.
• For research and development in photochemical and sensor applications due to its light-sensitive azo groups.
• Potential use in the preparation of functionalized polymers and advanced materials.

Basic Information

Product Name	Trisodium 5,5'-[(2-Sulphonato-1,4-Phenylene)Bis(Azo)]Bis(Salicylate)
CAS No.	72230-95-6
Molecular Formula	C20H11N4Na3O10S
Molecular Weight	584.36 g/mol
Synonyms	5,5'-[(2-Sulfo-1,4-phenylene)bis(azo)]bis(salicylic acid) trisodium salt; Trisodium 5,5'-(2-sulfonato-p-phenylenebisazo)disalicylate; Acid Yellow 23 trisodium salt derivative; Azo dye intermediate 72230-95-6; Disodium 5,5'-[(2-sulphonato-1,4-phenylene)bis(azo)]bis(salicylate) sodium salt; Phenylene bisazo disalicylate trisodium sulfonate
EINECS	Contact for details

Quality Control

Our Trisodium 5,5'-[(2-Sulphonato-1,4-Phenylene)Bis(Azo)]Bis(Salicylate) is produced under a strict quality management system. Every batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure it meets precise specifications for use as an intermediate and reagent. Certificates of Analysis (COA) documenting batch-specific results are available upon request.

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 tightly sealed after opening to prevent absorption of atmospheric moisture.

Specification

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