Description

1,5-Dihydroxyanthraquinone is a high-purity organic compound belonging to the anthraquinone dye intermediate family, identified by CAS NO 117-12-4. It serves as a critical building block for synthesizing vibrant and stable colorants, valued for its excellent lightfastness and chemical resistance. This intermediate is essential for manufacturers in the dyestuff, pigment, and specialty chemical industries seeking to produce high-performance color products.

Application

• Dye Intermediate: A key precursor for the synthesis of vat dyes and disperse dyes used in textile coloring.
• Pigment Manufacturing: Used in the production of high-quality organic pigments for inks, paints, and plastics.
• Liquid Crystal Displays (LCDs): Acts as an intermediate in the synthesis of dyes for color filters in electronic displays.
• Research & Development: Serves as a standard or starting material in organic synthesis and photochemical research.
• Specialty Chemicals: Utilized in the formulation of functional chemicals where the anthraquinone core structure is required.

Basic Information

Product Name	1,5-Dihydroxyanthraquinone
CAS No.	117-12-4
Molecular Formula	C14H8O4
Molecular Weight	240.21 g/mol
Synonyms	1,5-Dihydroxy-9,10-anthracenedione; Anthraquinone, 1,5-dihydroxy-; 1,5-Dihydroxy-9,10-anthraquinone; Quinizarin; Solvent Orange 86; CI 58050; 1,5-Dihydroxyanthrachinon; 1,5-Diidrossiantrachinone
EINECS	204-173-5

Quality Control

Our 1,5-Dihydroxyanthraquinone is manufactured under a strict quality management system. Each batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation, to ensure it meets precise specifications for dye and pigment synthesis. Certificates of Analysis (COA) documenting all critical parameters are available upon request to support your quality assurance protocols.

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 oxidizing agents.

Specification

Item	Specification
Appearance	Orange to red-brown crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	278°C - 282°C
Loss on Drying	≤ 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.