Description

Trisodium 2-[(1-Hydroxy-3,6-Disulphonato-2-Naphthyl)Azo]Benzoate is a high-purity, water-soluble azo dye intermediate and analytical reagent. This compound is valued for its strong chromophoric properties and excellent stability in aqueous systems, making it a critical component for precise colorimetric analysis and specialty dye synthesis. It is essential for manufacturers and R&D laboratories in the chemical, analytical, and specialty pigments industries seeking reliable and consistent performance.

Application

• Analytical Chemistry Reagent: Primarily used as a sensitive colorimetric indicator and complexometric agent in analytical procedures.
• Dye Intermediate: Serves as a key precursor in the synthesis of acid dyes and reactive dyes for textiles.
• Biological Staining: Employed in histological and cytological staining applications for microscopic analysis.
• Photometric Analysis: Utilized in spectrophotometric methods for the quantitative determination of various metal ions.
• Research & Development: A valuable tool in chemical research for studying azo coupling reactions and dye properties.
• Industrial Colorant: Used in the formulation of specialized colorants for paper, leather, and inks where specific chromaticity is required.

Basic Information

Item	Detail
Product Name	Trisodium 2-[(1-Hydroxy-3,6-Disulphonato-2-Naphthyl)Azo]Benzoate
CAS No.	68806-09-7
Molecular Formula	C17H9N2Na3O10S2
Molecular Weight	550.35 g/mol
Synonyms	Acid Orange 12, Trisodium Salt; C.I. 15970; 2-[(1-Hydroxy-3,6-disulfo-2-naphthyl)azo]benzoic Acid Trisodium Salt; Benzoic Acid, 2-[(1-Hydroxy-3,6-disulfo-2-naphthyl)azo]-, Trisodium Salt; Tropaeolin O; Orange I; 1-(4-Sulfophenylazo)-2-naphthol-6,8-disulfonic Acid Trisodium Salt
EINECS	Contact for details

Quality Control

Our Trisodium 2-[(1-Hydroxy-3,6-Disulphonato-2-Naphthyl)Azo]Benzoate 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 critical applications. Certificates of Analysis (COA) documenting purity, assay, and impurity profiles are available upon request 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). Keep away from incompatible materials. Due to its light-sensitive nature, prolonged exposure to direct light should be avoided to maintain product integrity.

Specification

Item	Specification
Appearance	Orange to reddish-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
Solubility (in Water)	Clear, orange solution

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