Description

2-Hydroxy-3-[(2-Hydroxy-1-Dibenzofuryl)Azo]-5-Nitrobenzenesulphonic Acid is a high-purity azo dye intermediate and specialty chemical compound. This product is valued for its precise chemical structure, which is critical for synthesizing dyes and pigments with specific coloristic properties and stability. It is primarily utilized by manufacturers in the dye and pigment industry, as well as by research institutions developing advanced colorants for textiles, inks, and specialty coatings.

Application

• Primary Intermediate for Azo Dyes & Pigments: Serves as a key building block in the synthesis of high-performance orange, red, and brown azo dyes.
• Textile Dyeing: Used in the production of dyes for coloring natural and synthetic fibers, offering good wash and light fastness.
• Ink Formulation: Employed in the manufacture of colorants for various printing inks, including packaging and publication inks.
• Industrial Coatings: A component in creating pigments for coatings applied to plastics, metals, and other substrates.
• Research & Development: Utilized in chemical research for developing novel chromophores and studying structure-property relationships in dye chemistry.
• Specialty Chemical Synthesis: Acts as a functional intermediate in organic synthesis for more complex chemical entities.

Basic Information

Product Name	2-Hydroxy-3-[(2-Hydroxy-1-Dibenzofuryl)Azo]-5-Nitrobenzenesulphonic Acid
CAS No.	83784-11-6
Molecular Formula	C20H11N3O8S
Molecular Weight	453.38 g/mol
Synonyms	5-Nitro-2-hydroxy-3-[(2-hydroxy-1-dibenzofuranyl)azo]benzenesulfonic acid; Benzenesulfonic acid, 2-hydroxy-3-[(2-hydroxy-1-dibenzofuranyl)azo]-5-nitro-; 2-Hydroxy-3-[(2-hydroxy-1-dibenzofuryl)azo]-5-nitrobenzenesulfonic acid; Azo dye intermediate 83784-11-6; 1-Dibenzofuranol, 2-[(2-hydroxy-3-sulfo-5-nitrophenyl)azo]-; C.I. 26050 (related class)
EINECS	Contact for details

Quality Control

Our production of 2-Hydroxy-3-[(2-Hydroxy-1-Dibenzofuryl)Azo]-5-Nitrobenzenesulphonic Acid adheres to stringent quality management protocols. Every batch undergoes rigorous analytical testing to ensure identity, purity, and consistency meet exacting standards. Certificates of Analysis (COA) documenting key parameters are available upon request to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). This material is hygroscopic (moisture-sensitive); ensure the container is kept tightly sealed to prevent absorption of atmospheric moisture.

Specification

Item	Specification
Appearance	Orange to brown powder or crystalline solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 2.0%
Sulfated Ash	≤ 0.5%
Heavy Metals (as Pb)	≤ 20 ppm

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