Description

2,3-Dihydroxy-1,4-Naphthoquinone is an important organic intermediate and functional dye precursor belonging to the naphthoquinone class of compounds. Its unique quinoid structure with adjacent hydroxyl groups makes it a versatile building block for synthesizing complex molecules and a key chromophore in dye chemistry. This high-purity compound is essential for manufacturers and research institutions in the pharmaceutical, agrochemical, and specialty chemical sectors seeking reliable, high-quality raw materials for advanced synthesis and product development.

Application

• Pharmaceutical Intermediate: Serves as a key precursor in the synthesis of various active pharmaceutical ingredients (APIs), particularly those with quinone-based structures, and in research for novel therapeutic agents.
• Dye and Pigment Manufacturing: Acts as a fundamental building block for producing high-value, complex organic dyes and pigments, especially azo dyes and metal-complex colorants.
• Agrochemical Synthesis: Used in the research and development of advanced fungicides, herbicides, and other crop protection agents that utilize quinone chemistry.
• Chemical Research & Development: Employed as a standard reagent and starting material in organic synthesis, catalysis studies, and materials science research within academic and industrial R&D laboratories.
• Analytical Chemistry: Functions as a chelating agent and colorimetric reagent in specific analytical methods for metal ion detection and quantification.
• Electrochemical Material Precursor: Investigated for use in developing organic electrode materials for batteries and capacitors due to its redox-active quinone moiety.

Basic Information

Product Name	2,3-Dihydroxy-1,4-Naphthoquinone
CAS No.	605-37-8
Molecular Formula	C10H6O4
Molecular Weight	190.15 g/mol
Synonyms	2,3-Dihydroxy-1,4-naphthalenedione; 1,4-Naphthoquinone-2,3-diol; Naphthazarin; 5,8-Dihydroxy-1,4-naphthoquinone; CI 75500; Alizarin Black SN; Alizarin Bordeaux; Alizarin Maroon; 2,3-Dihydroxynaphthoquinone
EINECS	210-076-1

Quality Control

Our 2,3-Dihydroxy-1,4-Naphthoquinone is manufactured under a strict quality management system. Each batch undergoes comprehensive analytical testing to ensure it meets precise specifications for identity, purity, and impurity profiles. A Certificate of Analysis (COA) detailing the results for all critical parameters is provided with every shipment to guarantee traceability, consistency, and compliance with your research or production requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated place at room temperature (15-25°C). Due to its light-sensitive nature and tendency to be easily oxidized, it is recommended to store the material under an inert atmosphere for long-term preservation and to minimize exposure to air upon opening.

Specification

Item	Specification
Appearance	Orange to red-brown crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	270 - 275 °C (dec.)
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.