Description

2-[3-[(1-Hydroxy-4-Sodiosulfo-2-Naphthalenyl)Azo]Phenyl]-6-Hydroxy-7-[(2,4-Dimethylphenyl)Azo]Naphtho[2,1-D]Thiazole-8-Sulfonic Acid Sodium Salt is a high-purity, synthetic azo dye intermediate of significant industrial importance. Its complex molecular structure is engineered to deliver specific chromophoric properties, making it a critical component for producing high-performance colorants. This compound is essential for manufacturers in the textile, ink, and specialty coatings industries seeking consistent, vibrant, and durable coloration.

Application

• Textile Dyeing: A key intermediate for synthesizing high-grade, wash-fast azo dyes for natural and synthetic fibers.
• Ink Formulation: Used in the production of pigments for industrial printing inks, including packaging and security inks.
• Specialty Coatings: Serves as a colorant precursor in coatings for plastics, leather, and other specialty materials requiring stable coloration.
• Research & Development: A valuable chemical for R&D laboratories focusing on novel dye synthesis and photophysical property studies.
• Functional Dyes: Potential use in the development of dyes for non-textile applications, such as in optical data storage or liquid crystal displays (LCDs).

Basic Information

Product Name	2-[3-[(1-Hydroxy-4-Sodiosulfo-2-Naphthalenyl)Azo]Phenyl]-6-Hydroxy-7-[(2,4-Dimethylphenyl)Azo]Naphtho[2,1-D]Thiazole-8-Sulfonic Acid Sodium Salt
CAS No.	6527-63-5
Molecular Formula	C41H27N5O8S2Na2
Molecular Weight	851.77 g/mol
Synonyms	Acid Black 210; C.I. 300310; Sodium 2-[3-[(1-hydroxy-4-sodiosulfo-2-naphthyl)azo]phenyl]-6-hydroxy-7-[(2,4-dimethylphenyl)azo]naphtho[2,1-d]thiazole-8-sulfonate; 2-[3-[(1-Hydroxy-4-sodiosulfo-2-naphthalenyl)azo]phenyl]-6-hydroxy-7-[(2,4-dimethylphenyl)azo]naphtho[2,1-d]thiazole-8-sulfonic acid disodium salt; C.I. Acid Black 210; Naphthol AS-based azo dye intermediate; Disodium 2-[3-[(1-hydroxy-4-sulphonato-2-naphthyl)azo]phenyl]-6-hydroxy-7-[(2,4-dimethylphenyl)azo]naphtho[2,1-d]thiazole-8-sulphonate
EINECS	Contact for details

Quality Control

Our production of 2-[3-[(1-Hydroxy-4-Sodiosulfo-2-Naphthalenyl)Azo]Phenyl]-6-Hydroxy-7-[(2,4-Dimethylphenyl)Azo]Naphtho[2,1-D]Thiazole-8-Sulfonic Acid Sodium Salt adheres to stringent quality management protocols. Every batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure consistent performance and specification compliance. Certificates of Analysis (COA) detailing all critical parameters are provided to guarantee traceability and supply reliability for your manufacturing 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). This product is hygroscopic (moisture-sensitive); the container must be kept tightly sealed to prevent absorption of atmospheric moisture, which can affect product quality and handling properties.

Specification

Item	Specification
Appearance	Dark powder or crystalline solid
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	Soluble in water, alkaline solutions

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