Description

Anthraquinone-2-Sulfonic Acid, Sodium Salt, Monohydrate, 90 is a high-purity, water-soluble sodium salt derivative of anthraquinone. This compound serves as a crucial key intermediate and functional dye precursor in advanced chemical synthesis. It is primarily required by manufacturers in the dyestuff, textile chemical, and specialty chemical industries for producing vibrant and stable colorants.

Application

• Dye and Pigment Intermediate: A vital precursor for synthesizing acid dyes, reactive dyes, and solvent dyes, particularly for coloring wool, silk, and nylon.
• Textile Chemical Manufacturing: Used in the production of specialized textile auxiliaries and finishing agents.
• Catalyst and Reagent: Employed as a catalyst or oxidizing agent in select organic synthesis and pulp bleaching processes.
• Analytical Chemistry: Functions as a reagent or standard in specific photometric and chromatographic analytical methods.
• Specialty Chemical Synthesis: Serves as a building block for advanced materials, including optical brighteners and photoactive compounds.
• Research & Development: Utilized in academic and industrial R&D for developing new chromophores and functional molecules.

Basic Information

Product Name	Anthraquinone-2-Sulfonic Acid, Sodium Salt, Monohydrate, 90
CAS No.	153277-35-1
Molecular Formula	C14H7NaO5S · H2O
Molecular Weight	328.26 g/mol (Monohydrate)
Synonyms	Sodium 9,10-dioxo-9,10-dihydroanthracene-2-sulfonate monohydrate; 2-Anthraquinonesulfonic acid sodium salt monohydrate; Anthraquinone-2-sulfonic acid sodium salt hydrate; Acid Blue 45 intermediate; AQ2S-Na; C.I. 63010; Sodium Anthraquinone-2-sulfonate
EINECS	Contact for details

Quality Control

Our Anthraquinone-2-Sulfonic Acid, Sodium Salt, Monohydrate is produced under a strict quality management system. Every batch undergoes comprehensive analytical testing to ensure identity, purity, and consistency. 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, and well-ventilated area at room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after opening to prevent absorption of atmospheric moisture.

Specification

Item	Specification
Appearance	Yellow to orange-yellow powder
Identification (IR)	Conforms
Assay (HPLC)	Min. 90.0%
Water Content (KF)	4.0% - 6.0%
pH (1% Solution)	6.0 - 8.0
Heavy Metals (as Pb)	Max. 20 ppm
Solubility (in Water)	Clear, yellow solution

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