Description

1-Hydroxy-2-(2-Hydroxy-5-Sulfo-Phenylazo)-3,6-Disulfo-8-Acetamino-Naphthaline is a high-purity, multi-sulfonated azo dye intermediate. This compound is valued for its excellent chromophoric properties and water solubility, making it a critical precursor for the synthesis of specialized dyes and pigments. It is primarily required by manufacturers in the textile, ink, and specialty chemical industries for producing vibrant, wash-fast colorants.

Application

• Textile Dye Synthesis: A key intermediate for manufacturing acid dyes and reactive dyes used on nylon, wool, and silk.
• Ink & Pigment Production: Used in the formulation of high-performance inks for digital printing and specialty pigments.
• Biological Staining: Potential use as a staining agent or chromophore in histological and cytological applications.
• Analytical Chemistry: Can serve as a complexometric indicator or a reagent in colorimetric detection methods.
• Research & Development: Employed in academic and industrial R&D for developing new functional dyes and optical materials.
• Photographic Industry: Used in the synthesis of light-sensitive compounds for specialized photographic processes.

Basic Information

Product Name	1-Hydroxy-2-(2-Hydroxy-5-Sulfo-Phenylazo)-3,6-Disulfo-8-Acetamino-Naphthaline
CAS No.	101708-53-6
Molecular Formula	C18H13N3O11S3
Molecular Weight	543.50 g/mol
Synonyms	Acid Black 210; C.I. 28440; 1-Hydroxy-2-[(2-hydroxy-5-sulfophenyl)azo]-3,6-disulfo-8-acetamidonaphthalene; 8-Acetamido-1-hydroxy-2-[(2-hydroxy-5-sulfophenyl)azo]-3,6-naphthalenedisulfonic acid; Azo Dye Intermediate 101708-53-6; Naphthalene-based trisulfonated azo dye
EINECS	Contact for details

Quality Control

Our 1-Hydroxy-2-(2-Hydroxy-5-Sulfo-Phenylazo)-3,6-Disulfo-8-Acetamino-Naphthaline is manufactured under a strict quality management system. Every batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure it meets precise customer specifications and industry standards. Certificates of Analysis (COA) detailing all quality parameters are provided with each shipment.

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 and stored under conditions of low humidity to prevent degradation and caking.

Specification

Item	Specification
Appearance	Dark brown to black powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Water Content (KF)	≤ 5.0%
Sulfated Ash	≤ 1.0%
Heavy Metals (as Pb)	≤ 20 ppm
Solubility (in Water)	Completely soluble

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