Description

1,3-Dihydroxyanthraquinone is a vital anthraquinone derivative, serving as a key intermediate and functional dye precursor in advanced manufacturing. Its value lies in its ability to impart color and specific chemical properties to a wide range of industrial products. This compound is essential for manufacturers in the dye and pigment, pharmaceutical, and specialty chemical sectors seeking high-purity intermediates for synthesis and production.

Application

• Dye and Pigment Intermediate: A crucial precursor for the synthesis of vat dyes, disperse dyes, and solvent dyes used in textiles, plastics, and inks.
• Pharmaceutical Synthesis: Used as a building block in the production of certain active pharmaceutical ingredients (APIs) and diagnostic agents.
• Chemical Research & Development: Serves as a standard or reagent in organic synthesis and analytical chemistry laboratories.
• Specialty Chemical Manufacturing: Employed in the production of functional chemicals, including photoinitiators and optical materials.
• Analytical Chemistry: Can be used as a pH indicator or a complexometric agent in specific analytical methods.

Basic Information

Product Name	1,3-Dihydroxyanthraquinone
CAS No.	518-83-2
Molecular Formula	C14H8O4
Molecular Weight	240.21 g/mol
Synonyms	Anthraflavic Acid; 1,3-Dihydroxy-9,10-anthracenedione; 1,3-Dihydroxy-9,10-anthraquinone; C.I. 58205; C.I. Mordant Violet 32; Solvent Orange 86; 1,3-Anthraquinonediol; Purpuroxanthin
EINECS	208-257-5

Quality Control

Our 1,3-Dihydroxyanthraquinone is manufactured under a strict quality management system. Each batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation (IR), to ensure it meets exacting standards. A Certificate of Analysis (COA) detailing all test results is provided with every 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 room temperature (15-25°C). Keep away from incompatible materials such as strong oxidizing agents.

Specification

Item	Specification
Appearance	Yellow to orange crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals (as Pb)	≤ 20 ppm

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