Description

2-Diazo-1-Naphthol-5-Sulfonic Acid Sodium Salt is a specialized diazonium compound that serves as a critical intermediate in advanced organic synthesis. Its value lies in its ability to act as a versatile coupling agent and a precursor for generating reactive carbenes or carbenoids under controlled conditions. This chemical is essential for manufacturers and R&D laboratories in the pharmaceutical, agrochemical, and specialty dye industries, where it is used to construct complex molecular architectures.

Application

• Pharmaceutical Intermediate: Key building block in the synthesis of active pharmaceutical ingredients (APIs), particularly for compounds requiring naphthalene-based structures.
• Agrochemical Synthesis: Used in the production of advanced herbicides, fungicides, and plant growth regulators.
• Dye and Pigment Manufacturing: Acts as a diazo component for creating azo dyes and pigments, offering specific color properties and lightfastness.
• Polymer Chemistry: Employed in the modification of polymers and as a photoinitiator or cross-linking agent in specialty polymer formulations.
• Research & Development: A valuable reagent in academic and industrial R&D for exploring new organic reactions and material science applications.
• Analytical Reagent: Can be used in specific analytical methods and as a standard for calibration in chromatographic systems.

Basic Information

Item	Detail
Product Name	2-Diazo-1-Naphthol-5-Sulfonic Acid Sodium Salt
CAS No.	312619-43-5
Molecular Formula	C10H5N2NaO4S
Molecular Weight	272.21 g/mol
Synonyms	2-Diazo-1-naphthol-5-sulfonic acid sodium salt; Sodium 2-diazo-1-naphthol-5-sulfonate; 1,2-Naphthoquinone-2-diazide-5-sulfonic acid sodium salt; DNQ sodium salt; 312619-43-5; 2-Diazo-1(2H)-naphthalenone-5-sulfonic acid sodium salt; Diazonaphthol sulfonate sodium salt
EINECS	Contact for details

Quality Control

Our 2-Diazo-1-Naphthol-5-Sulfonic Acid Sodium Salt is produced under strict quality management protocols. Each batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation via FT-IR and NMR, to ensure it meets the high standards required for synthetic applications. A Certificate of Analysis (COA) detailing all test results is provided with every shipment to guarantee traceability and consistency.

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). This product is hygroscopic (moisture-sensitive) and light-sensitive; therefore, containers must be kept tightly sealed and away from direct light exposure to maintain stability and prevent decomposition.

Specification

Item	Specification
Appearance	Yellow to orange powder or crystalline solid
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 95.0%
Water Content (KF)	≤ 5.0%
Heavy Metals (as Pb)	≤ 20 ppm
Residue on Ignition	≤ 0.5%

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