Description

1-Anthraquinonesulfonic Acid is a key sulfonated derivative of anthraquinone, serving as a vital intermediate in the synthesis of dyes and pigments. Its sulfonic acid group enhances water solubility, making it particularly valuable for creating acid dyes and other colorants used in textile and paper industries. This compound is essential for manufacturers and R&D laboratories focused on developing specialized dyes, functional chemicals, and advanced organic synthesis.

Application

• Dye and Pigment Intermediate: Primary use as a precursor for manufacturing anthraquinone-based acid dyes, reactive dyes, and solvent dyes.
• Textile Industry: Used in the production of dyes for coloring wool, silk, and nylon fibers.
• Paper Coloring: Employed in the synthesis of dyes for specialty paper products.
• Chemical Synthesis: Acts as a building block for more complex anthraquinone derivatives in pharmaceutical and agrochemical research.
• Analytical Reagent: Can serve as a standard or reagent in certain analytical chemistry methods.
• Catalyst Research: Investigated for potential use in catalytic processes and as a component in electrochemical studies.

Basic Information

Product Name	1-Anthraquinonesulfonic Acid
CAS No.	82-49-5
Molecular Formula	C14H8O5S
Molecular Weight	288.27 g/mol
Synonyms	Anthraquinone-1-sulfonic Acid; 9,10-Dihydro-9,10-dioxo-1-anthracenesulfonic Acid; 1-Anthraquinonesulphonic Acid; 1-AQSA; 1-Sulfoanthraquinone; Alizarin Red S Intermediate; C.I. 58205; 1-Anthraquinone Sulfonic Acid
EINECS	201-420-7

Quality Control

Our 1-Anthraquinonesulfonic Acid is produced under a strict quality management system. Each batch undergoes comprehensive analytical testing to ensure identity, purity, and consistency. We provide Certificates of Analysis (COA) with key parameters including assay, impurity profile, and physical characteristics. Our quality commitment ensures the material meets the specifications required for industrial synthesis and research applications.

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 nature, the container must be kept tightly sealed to prevent moisture absorption. Keep away from incompatible materials such as strong bases and oxidizing agents.

Specification

Item	Specification
Appearance	Yellow to orange-yellow powder or crystals
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 2.0%
Sulfated Ash	≤ 0.5%
Heavy Metals (as Pb)	≤ 20 ppm

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