Description

1,8-Dihydroxy-4,5-Dinitroanthraquinone is a specialized nitro-substituted anthraquinone derivative, serving as a key intermediate in the synthesis of high-value dyes and functional pigments. Its precise molecular structure provides unique chromophoric properties essential for producing vivid and stable colors. This compound is primarily utilized by manufacturers in the dye and pigment industries, as well as by research institutions developing advanced organic materials and colorants.

Application

• Dye Intermediate: A critical precursor for the synthesis of vat dyes, disperse dyes, and solvent dyes, known for their excellent color fastness and thermal stability.
• Pigment Manufacturing: Used in the production of high-performance organic pigments for plastics, coatings, and inks, offering superior tinting strength and weatherability.
• Research & Development: Serves as a building block in academic and industrial R&D for novel chromophores, photonic materials, and organic semiconductors.
• Textile Industry: Employed in the formulation of specialized dyes for synthetic fibers like polyester and nylon, ensuring deep, uniform shades.
• Analytical Chemistry: Can be used as a standard or reagent in chromatographic analysis and colorimetric detection methods.

Basic Information

Product Name	1,8-Dihydroxy-4,5-Dinitroanthraquinone
CAS No.	81-55-0
Molecular Formula	C14H6N2O8
Molecular Weight	330.21 g/mol
Synonyms	1,8-Dihydroxy-4,5-dinitro-9,10-anthracenedione; 4,5-Dinitro-1,8-dihydroxyanthraquinone; C.I. 59430; C.I. Vat Yellow 20; Dinitrochrysazin; 1,8-Dihydroxy-4,5-dinitroanthra-9,10-quinone
EINECS	201-357-3

Quality Control

Our production of 1,8-Dihydroxy-4,5-Dinitroanthraquinone adheres to stringent quality management protocols to ensure batch-to-batch consistency and purity. Each lot is analyzed against comprehensive specifications, including identity confirmation, assay, and impurity profiling. A Certificate of Analysis (COA) detailing all test results is provided with every shipment to support your quality assurance and regulatory compliance needs.

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 strong oxidizing agents and incompatible materials.

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.