Description

1-Hydroxy-9,10-Dioxo-9,10-Dihydroanthracene-2-Sulfonic Acid is a specialized anthraquinone derivative that serves as a key intermediate in the synthesis of high-value dyes and functional materials. Its unique sulfonated quinone structure makes it valuable for imparting water solubility, color, and specific chemical reactivity to advanced formulations. This compound is primarily sought by manufacturers in the dye and pigment, specialty chemical, and pharmaceutical intermediate sectors.

Application

• Dye and Pigment Intermediate: A crucial precursor for the synthesis of acid dyes, reactive dyes, and anthraquinone-based pigments, particularly for textile and leather coloring.
• Specialty Chemical Synthesis: Used in the production of functional chemicals, including optical brighteners and photoactive compounds.
• Pharmaceutical Intermediate: Serves as a building block in the synthesis of certain anthraquinone-derived active pharmaceutical ingredients (APIs).
• Analytical Reagent: Potential use as a reagent or standard in analytical chemistry due to its distinct chromophoric properties.
• Research & Development: Employed in academic and industrial R&D for developing new materials with specific optical or electronic characteristics.

Basic Information

Product Name	1-Hydroxy-9,10-Dioxo-9,10-Dihydroanthracene-2-Sulfonic Acid
CAS No.	56670-83-8
Molecular Formula	C₁₄H₈O₆S
Molecular Weight	304.27 g/mol
Synonyms	1-Hydroxyanthraquinone-2-sulfonic Acid; Alizarin-2-sulfonic Acid; 2-Anthraquinonesulfonic Acid, 1-hydroxy-; 1-Hydroxy-2-anthraquinonesulfonic Acid; 9,10-Dihydro-9,10-dioxo-1-anthracenesulfonic Acid, 1-hydroxy-; Acid Alizarin 2S; Mordant Blue 79 (related dye form)
EINECS	Contact for details

Quality Control

Our production of 1-Hydroxy-9,10-Dioxo-9,10-Dihydroanthracene-2-Sulfonic Acid adheres to stringent quality management protocols. Each batch undergoes comprehensive analytical testing to ensure identity, purity, and consistency. Certificates of Analysis (COA) documenting key parameters such as assay, impurity profile, and physical properties are provided to guarantee the material meets your specific application requirements.

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). Keep away from strong acids and organic solvents. The container should be kept tightly sealed to minimize exposure to atmospheric moisture.

Specification

Item	Specification
Appearance	Yellow to orange powder or crystalline solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
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.