Description

5-[(2-Hydroxy-5-Methylphenyl)Azo]-2-[2-(4-Nitro-2-Sulphophenyl)Vinyl]Benzenesulphonic Acid is a high-purity, synthetic azo dye intermediate of significant commercial importance. Its complex molecular structure, featuring both azo and vinyl linkages, makes it a critical precursor for the synthesis of specialized dyes and pigments. This compound is primarily sought by manufacturers in the textile, ink, and specialty chemical industries for producing vibrant and stable colorants.

Application

• Primary Intermediate for Azo Dyes: Serves as a key building block in the synthesis of high-performance, polyfunctional azo dyes for textiles and fibers.
• Specialty Pigment Manufacturing: Used in the production of organic pigments for inks, coatings, and plastics requiring specific color fastness and stability.
• Research & Development: Employed in chemical R&D for developing novel chromophores and studying structure-property relationships in dye chemistry.
• Functional Dye Synthesis: Potential precursor for dyes used in non-textile applications such as sensors or imaging materials.

Basic Information

Product Name	5-[(2-Hydroxy-5-Methylphenyl)Azo]-2-[2-(4-Nitro-2-Sulphophenyl)Vinyl]Benzenesulphonic Acid
CAS No.	93892-27-4
Molecular Formula	C21H15N3O8S2
Molecular Weight	501.49 g/mol
Synonyms	Benzenesulfonic acid, 5-[(2-hydroxy-5-methylphenyl)azo]-2-[2-(4-nitro-2-sulfophenyl)ethenyl]-; 93892-27-4; 5-[(2-Hydroxy-5-methylphenyl)diazenyl]-2-[2-(4-nitro-2-sulfophenyl)ethenyl]benzenesulfonic acid; Azo dye intermediate 93892-27-4; 2-[2-(4-Nitro-2-sulfophenyl)vinyl]-5-[(2-hydroxy-5-methylphenyl)azo]benzenesulfonic acid
EINECS	Contact for details

Quality Control

Our production of this azo intermediate adheres to strict quality management protocols to ensure batch-to-batch consistency and high purity. Each lot is analyzed using advanced techniques like HPLC to verify identity and assay. A comprehensive Certificate of Analysis (COA) detailing purity, impurity profile, and physical specifications is provided with every shipment to support your quality assurance processes.

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 strong oxidizing agents and incompatible materials. Due to its complex organic structure, prolonged exposure to elevated temperatures or humidity should be avoided.

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	≤ 1.0%
Heavy Metals (as Pb)	≤ 20 ppm

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