Description

1,5-Dichloro-4,8-Dihydroxyanthraquinone is a halogenated dihydroxyanthraquinone derivative, a key chemical intermediate prized for its functional chromophore structure. This compound matters for its role in synthesizing high-value, color-intensive dyes and pigments with specific lightfastness and chemical resistance properties. Industries requiring advanced colorants, such as textile dyeing, specialty inks, and high-performance plastics, rely on this intermediate to achieve precise and stable hues.

Application

• Dye Intermediate: Primary use as a key precursor in the synthesis of vat dyes and disperse dyes for cotton, polyester, and other synthetic fibers.
• Pigment Manufacturing: Serves as a crucial building block for producing high-performance organic pigments used in automotive paints, industrial coatings, and plastics.
• Specialty Inks: Employed in the formulation of inks requiring specific color properties, stability, and resistance to fading for packaging and security printing.
• Liquid Crystal Displays (LCDs): Potential use as a dichroic dye intermediate in the production of color filters for electronic displays.
• Research & Development: Used in academic and industrial R&D for exploring novel photonic materials, organic semiconductors, and chemical sensors.
• Chemical Synthesis: Acts as a versatile intermediate for further functionalization in pharmaceutical and agrochemical research due to its reactive quinone and chloro groups.

Basic Information

Product Name	1,5-Dichloro-4,8-Dihydroxyanthraquinone
CAS No.	6837-97-4
Molecular Formula	C14H6Cl2O4
Molecular Weight	309.10 g/mol
Synonyms	1,5-Dichloro-4,8-dihydroxy-9,10-anthracenedione; 1,5-Dichloro-4,8-dihydroxyanthra-9,10-quinone; C.I. 58055; 4,8-Dihydroxy-1,5-dichloroanthraquinone; 1,5-Dichloro-4,8-anthraquinonediol; Disperse Blue 73 Intermediate; Anthraquinone, 1,5-dichloro-4,8-dihydroxy-
EINECS	229-915-1

Quality Control

Our 1,5-Dichloro-4,8-Dihydroxyanthraquinone is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure it meets precise specifications for use in demanding applications like dye and pigment synthesis. A Certificate of Analysis (COA) detailing all test results is provided with every shipment to guarantee traceability and compliance with your quality 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 incompatible materials such as strong oxidizing agents. The product is light-sensitive (store away from light).

Specification

Item	Specification
Appearance	Yellow to orange powder
Identification (IR)	Conforms
Purity (HPLC)	≥ 98.0%
Melting Point	Contact for details
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.