Description

Sodium 4-Diazo-3,4-Dihydro-3-Oxonaphthalene-1-Sulphonate is a specialized diazonium salt derivative of naphthalene, serving as a critical photoactive intermediate in advanced chemical synthesis. Its value lies in its ability to act as a precise coupling agent and a source of reactive diazo groups under controlled conditions, enabling the production of high-performance dyes and functional materials. This compound is essential for manufacturers and R&D laboratories in the photographic chemicals, dye and pigment synthesis, and specialty polymer sectors seeking reliable, high-purity building blocks.

Application

• Dye and Pigment Manufacturing: A key precursor for the synthesis of azo dyes and complex organic pigments, particularly for applications requiring high color strength and lightfastness.
• Photographic Industry: Used in the production of light-sensitive layers for specialized photographic papers and films.
• Chemical Synthesis: Serves as a versatile diazo component in organic synthesis for creating complex aromatic compounds and heterocycles.
• Research & Development: Employed in academic and industrial R&D for developing new photoinitiators, photoresists, and functional polymeric materials.
• Analytical Reagents: Can be utilized in the preparation of reagents for analytical chemistry and biochemical labeling.

Basic Information

Product Name	Sodium 4-Diazo-3,4-Dihydro-3-Oxonaphthalene-1-Sulphonate
CAS No.	5114-93-2
Molecular Formula	C10H6N2NaO4S
Molecular Weight	273.22 g/mol
Synonyms	1-Diazo-2-naphthol-4-sulfonic Acid Sodium Salt; 4-Diazo-3,4-dihydro-3-oxo-1-naphthalenesulfonic Acid Sodium Salt; 1,2-Naphthoquinone-1-diazide-4-sulfonic Acid Sodium Salt; Sodium 1-Diazo-2-oxo-1,2-dihydronaphthalene-4-sulfonate; 1,2-Naphthoquinone-2-diazide-4-sulfonic Acid Sodium Salt; Diazonaphthol Sulfonate Sodium Salt; ND Sodium Salt; Contact for additional trade names.
EINECS	225-835-2

Quality Control

Our production of Sodium 4-Diazo-3,4-Dihydro-3-Oxonaphthalene-1-Sulphonate adheres to stringent internal quality protocols to ensure batch-to-batch consistency and high reactivity. Each lot is analyzed to confirm identity, purity, and absence of critical impurities. Certificates of Analysis (COA) documenting key parameters are available upon request to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at room temperature (15-25°C). Due to its light-sensitive nature, handling and packaging should minimize exposure to direct light to maintain product integrity.

Specification

Item	Specification
Appearance	Yellow to orange-yellow powder or crystalline solid
Identification (IR)	Conforms to structure
Assay (HPLC)	Min. 95.0%
Water Content (KF)	Max. 5.0%
Solubility	Soluble in water, methanol

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