Description

9,10-Dihydro-5,8-Dihydroxy-9,10-Dioxo-2-Anthracenecarboxylic Acid is a specialized anthraquinone derivative, a high-purity intermediate of significant value in advanced chemical synthesis. This compound matters for its role as a precise building block in the development of complex molecules, including dyes, pigments, and active pharmaceutical ingredients (APIs). It is primarily needed by R&D laboratories and production facilities in the fine chemical, pharmaceutical, and specialty colorant industries seeking reliable, high-quality raw materials for critical processes.

Application

• Pharmaceutical Intermediate: Key precursor in the synthesis of anthracycline-based chemotherapeutic agents and other active pharmaceutical ingredients (APIs).
• Dye & Pigment Synthesis: Serves as a core structure for manufacturing high-performance anthraquinone dyes and organic pigments used in textiles and plastics.
• Organic Electronic Materials: Investigated as a building block for organic semiconductors and charge-transport materials in electronic devices.
• Chemical Research & Development: Used as a standard or starting material in organic synthesis for novel compound libraries and methodological studies.
• Analytical Chemistry: May be employed as a reagent or standard in chromatographic analysis and spectroscopic studies.

Basic Information

Product Name	9,10-Dihydro-5,8-Dihydroxy-9,10-Dioxo-2-Anthracenecarboxylic Acid
CAS No.	19591-45-8
Molecular Formula	C15H8O6
Molecular Weight	284.22 g/mol
Synonyms	2-Anthracenecarboxylic acid, 9,10-dihydro-5,8-dihydroxy-9,10-dioxo-; 5,8-Dihydroxy-9,10-dioxo-9,10-dihydroanthracene-2-carboxylic acid; Quinizarin-2-carboxylic acid; 1,4-Dihydroxyanthraquinone-2-carboxylic acid; 2-Carboxyquinizarin; CI 58500; Acid Blue 281; Contact for additional trade names.
EINECS	Contact for details

Quality Control

Our 9,10-Dihydro-5,8-Dihydroxy-9,10-Dioxo-2-Anthracenecarboxylic Acid is manufactured under a strict quality management system. Every batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation (IR, NMR), to ensure it meets exacting specifications for research and production use. A comprehensive Certificate of Analysis (COA) detailing all test results is provided with each shipment to guarantee traceability and compliance.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at a controlled room temperature (15-25°C). This compound is light-sensitive and should be handled under appropriate conditions to maintain stability.

Specification

Item	Specification
Appearance	Orange to red-brown crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 20 ppm

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