Description

5,6-Dihydro-5,6-Dioxo-2-Naphthalenesulfonic Acid is a specialized naphthoquinone derivative functionalized with a sulfonic acid group, offering unique reactivity and solubility properties. This compound serves as a versatile and valuable chemical intermediate for the synthesis of more complex molecules, particularly in the production of dyes, pigments, and functional materials. It is primarily utilized by R&D laboratories and industrial manufacturers in the fine chemical, pharmaceutical, and agrochemical sectors seeking to incorporate its distinct quinone-sulfonate structure.

Application

• Dye and Pigment Intermediate: A key building block in the synthesis of quinone-based dyes, pigments, and colorants.
• Pharmaceutical Synthesis: Used as a precursor or intermediate in the research and development of active pharmaceutical ingredients (APIs).
• Agrochemical Manufacturing: Employed in the production of specialized herbicides, fungicides, or plant growth regulators.
• Functional Material Production: Serves as a monomer or additive in the creation of polymers, conductive materials, or photoactive compounds.
• Chemical Research: Utilized in academic and industrial R&D for studying oxidation-reduction reactions and sulfonation chemistry.
• Analytical Reagent: Potential use as a standard or reagent in analytical chemistry methodologies.

Basic Information

Product Name	5,6-Dihydro-5,6-Dioxo-2-Naphthalenesulfonic Acid
CAS No.	5690-17-5
Molecular Formula	C₁₀H₆O₅S
Molecular Weight	238.22 g/mol
Synonyms	1,2-Naphthoquinone-4-sulfonic Acid; 5,6-Dihydroxy-1,2-naphthoquinone-4-sulfonic Acid; 4-Sulfo-1,2-naphthoquinone; 1,2-Naphthoquinone-4-sulphonic Acid; 5,6-Dihydroxy-5,6-dihydro-1,2-naphthoquinone-4-sulfonic Acid; 4-Sulfonaphthazarin; NSC 403697
EINECS	227-145-7

Quality Control

Our 5,6-Dihydro-5,6-Dioxo-2-Naphthalenesulfonic Acid is produced under a strict quality management system. Every batch undergoes comprehensive analytical testing to ensure identity, purity, and consistency. A detailed Certificate of Analysis (COA) is provided with each shipment, documenting key parameters such as assay and impurity profiles. We are committed to meeting the specific quality requirements of our customers across research and industrial applications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area. Recommended storage temperature is between 15°C and 25°C. Keep away from strong bases and reducing agents. Due to its quinone structure, prolonged exposure to light and air should be minimized.

Specification

Item	Specification
Appearance	Yellow to orange powder or crystals
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Water Content	≤ 5.0%
Residue on Ignition	≤ 0.5%

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