Description

5,8-Dihydroxy-1,4-naphthoquinone is a synthetically valuable, multi-functional quinone derivative that serves as a key intermediate in organic synthesis. Its unique structure, featuring both quinone and phenolic hydroxyl groups, makes it a versatile precursor for dyes, pigments, and biologically active compounds. This high-purity chemical is essential for researchers and manufacturers in the pharmaceutical, agrochemical, and specialty chemical industries seeking to develop novel materials and active ingredients.

Application

• Pharmaceutical Intermediate: A crucial building block for the synthesis of anthracycline antibiotics, antitumor agents, and other pharmacologically active quinone-based compounds.
• Dye & Pigment Manufacturing: Serves as a core structure for producing high-performance naphthoquinone dyes, pigments, and colorants used in textiles and industrial applications.
• Agrochemical Synthesis: Used in the research and development of novel fungicides, herbicides, and plant growth regulators that leverage its redox-active properties.
• Chemical Research & Development: Employed as a model compound and starting material in organic synthesis, catalysis studies, and materials science for developing new polymers or electronic materials.
• Analytical Chemistry: Can be utilized as a reagent or standard in analytical methods due to its distinct spectroscopic and electrochemical characteristics.

Basic Information

Product Name	5,8-Dihydroxy-1,4-naphthoquinone
CAS No.	475-38-7
Molecular Formula	C10H6O4
Molecular Weight	190.15 g/mol
Synonyms	5,8-Dihydroxy-1,4-naphthalenedione; NSC 3885; 1,4-Naphthoquinone, 5,8-dihydroxy-; 5,8-Dihydroxynaphthoquinone; Naphthazarin (common name); 5,8-Dihydroxy-1,4-naphthoquinon; CI 75500
EINECS	207-489-1

Quality Control

Our 5,8-Dihydroxy-1,4-naphthoquinone is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation (IR), to ensure it meets the high standards required for synthetic applications. A Certificate of Analysis (COA) detailing all specifications is provided with every shipment to guarantee traceability and batch-to-batch consistency.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated place at room temperature (15-25°C). This compound is light-sensitive (store away from light) and easily oxidized (store under inert atmosphere); prolonged exposure to air and light should be avoided to maintain stability and purity.

Specification

Item	Specification
Appearance	Orange to red-brown crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	≥ 240°C (dec.)
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%

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