Description

3-Hydroxy-4-[(Thiazol-2-Yl)Azo]-2,7-Naphthalenedisulfonic Acid is a specialized azo dye intermediate characterized by its sulfonic acid groups and heterocyclic thiazole moiety. This compound matters for its role as a key precursor in the synthesis of high-performance, water-soluble dyes and pigments, offering excellent color fastness and complexing properties. Industrial buyers in the textile, leather, and specialty chemical manufacturing sectors require this intermediate to produce vibrant and durable colorants.

Application

• Textile Dye Intermediate: Primary use in synthesizing acid dyes and reactive dyes for coloring nylon, wool, and silk fibers.
• Leather Coloring Agent: Used in the formulation of dyes for leather finishing, providing deep, uniform shades.
• Paper Dye Precursor: Employed in the manufacture of dyes for specialty paper and packaging products.
• Biological Staining: Potential use as an intermediate for histochemical stains and indicators in laboratory settings.
• Metal Complex Dye Synthesis: Serves as a ligand for creating metallized dyes with enhanced light and wash fastness.
• Inkjet Ink Formulation: Used in the development of high-quality, water-based inkjet inks for industrial printing.
• Analytical Reagent: Can be utilized as a chromogenic agent in analytical chemistry for metal ion detection.
• Research & Development: Serves as a building block in organic synthesis for novel functional dyes and photoactive materials.

Basic Information

Product Name	3-Hydroxy-4-[(Thiazol-2-Yl)Azo]-2,7-Naphthalenedisulfonic Acid
CAS No.	2172-27-2
Molecular Formula	C₁₃H₉N₃O₇S₃
Molecular Weight	439.42 g/mol
Synonyms	2,7-Naphthalenedisulfonic acid, 3-hydroxy-4-[(2-thiazolyl)azo]-; C.I. 17205; Acid Orange 86; 3-Hydroxy-4-(2-thiazolylazo)-2,7-naphthalenedisulfonic acid; Thiazole Orange R; Azo Orange TH; 4-[(2-Thiazolyl)azo]-3-hydroxy-2,7-naphthalenedisulfonic acid
EINECS	218-531-7

Quality Control

Our production of 3-Hydroxy-4-[(Thiazol-2-Yl)Azo]-2,7-Naphthalenedisulfonic Acid adheres to stringent quality management protocols to ensure batch-to-batch consistency and purity for industrial applications. The product undergoes rigorous testing, including identification, assay, and impurity profile analysis via modern analytical techniques. Certificates of Analysis (COA) detailing all specifications are available upon request to support your quality assurance and regulatory compliance needs.

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 stability.

Specification

Item	Specification
Appearance	Orange to brown powder or crystalline solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 5.0%
Sulfated Ash	≤ 0.5%
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.