Description

1-Chloro-4-Hydroxyanthraquinone is a versatile and high-value anthraquinone derivative, serving as a critical intermediate in the synthesis of complex organic molecules. Its unique structure, featuring both chloro and hydroxy substituents, makes it a key building block for creating vivid colors and advanced functional materials. This compound is essential for manufacturers and R&D laboratories in the dye, pigment, and specialty chemical industries seeking to develop high-performance products.

Application

• Dye and Pigment Intermediate: Primarily used in the synthesis of high-quality vat dyes, disperse dyes, and solvent dyes, contributing to excellent color fastness and brightness in textiles and plastics.
• Pharmaceutical Intermediate: Serves as a key precursor in the research and development of certain anthraquinone-based active pharmaceutical ingredients (APIs).
• Organic Synthesis Building Block: Utilized in academic and industrial research for constructing complex polycyclic aromatic compounds and functional materials.
• Liquid Crystal and Electronic Material Precursor: Investigated for use in the synthesis of organic semiconductors and colorants for electronic displays.
• Analytical Reagent: May be employed as a standard or reagent in chromatographic analysis and chemical research.

Basic Information

Product Name	1-Chloro-4-Hydroxyanthraquinone
CAS No.	82-42-8
Molecular Formula	C14H7ClO3
Molecular Weight	258.66 g/mol
Synonyms	1-Chloro-4-hydroxy-9,10-anthracenedione; 4-Hydroxy-1-chloroanthraquinone; C.I. 58055; C.I. Vat Yellow 1; Cibanone Yellow 3G; Indanthren Yellow 3G; 1-Chloro-4-anthraquinol; 1-Chloro-4-anthrahydroquinone
EINECS	201-418-8

Quality Control

Our 1-Chloro-4-Hydroxyanthraquinone 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 critical applications. Certificates of Analysis (COA) documenting all test results are available upon request to support your quality assurance and regulatory compliance needs.

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.

Specification

Item	Specification
Appearance	Yellow to orange crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	208 - 212 °C
Loss on Drying	≤ 0.5%
Heavy Metals	≤ 20 ppm

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