Description

4-Diazo-3,4-Dihydro-7-Nitro-3-Oxo-1-Naphthalenesulfonic Acid is a specialized diazonium salt derivative of naphthalene, valued for its unique reactivity as a photoactive intermediate and coupling agent. Its core value proposition lies in enabling precise chemical synthesis and functionalization in advanced material and dye manufacturing processes. This compound is essential for industrial chemists and R&D professionals in the production of colorants, photoactive polymers, and as a reagent in organic synthesis.

Application

• Key intermediate in the synthesis of azo dyes and pigments for textiles, inks, and plastics.
• Photoactive component in the production of photoresists and light-sensitive materials for the electronics and printing industries.
• Specialized reagent for diazonium coupling reactions in fine chemical and pharmaceutical synthesis.
• Building block for creating functionalized polymers with specific light-absorption or chemical-linking properties.
• Used in research and development of advanced organic materials and chemical sensors.

Basic Information

Product Name	4-Diazo-3,4-Dihydro-7-Nitro-3-Oxo-1-Naphthalenesulfonic Acid
CAS No.	63589-25-3
Molecular Formula	C₁₀H₅N₃O₇S
Molecular Weight	311.23 g/mol
Synonyms	7-Nitro-3-oxo-3,4-dihydronaphthalene-1-sulfonic acid 4-diazonium betaine; 4-Diazo-3,4-dihydro-3-oxo-7-nitro-1-naphthalenesulfonic acid; 1-Naphthalenesulfonic acid, 4-diazo-3,4-dihydro-7-nitro-3-oxo-; Diazonium-7-nitro-3-oxo-3,4-dihydronaphthalene-1-sulfonate; 7-Nitro-3-oxo-3,4-dihydronaphthalene-1-sulfonic acid diazonium inner salt
EINECS	Contact for details

Quality Control

Our production of 4-Diazo-3,4-Dihydro-7-Nitro-3-Oxo-1-Naphthalenesulfonic Acid adheres to stringent quality management protocols to ensure batch-to-batch consistency and reliability for industrial applications. All materials undergo rigorous analytical testing, including HPLC for purity and identity confirmation. A comprehensive Certificate of Analysis (COA) detailing purity, assay, and impurity profiles is provided with each shipment 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 a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after opening to prevent degradation from atmospheric moisture. Keep away from heat, sparks, and open flame.

Specification

Item	Specification
Appearance	Yellow to orange crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Water Content (KF)	≤ 5.0%
Related Substances (HPLC)	Total impurities ≤ 3.0%
Solubility	Soluble in polar organic solvents

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