Description

2-Diazo-1-Naphthol-4-Sulfonate is a specialized diazonium salt derivative, a key intermediate in the synthesis of dyes, pigments, and photoactive compounds. Its value lies in its ability to act as a precise coupling agent and a source of the diazonium functional group under controlled conditions. This compound is essential for manufacturers and R&D laboratories in the photographic chemicals, dye and pigment synthesis, and advanced material research sectors.

Application

• Dye and Pigment Manufacturing: A critical coupling agent for the production of azo dyes and pigments, imparting specific color properties and stability.
• Photographic Chemicals: Used in the synthesis of light-sensitive components for specialized photographic films and papers.
• Chemical Synthesis Intermediate: Serves as a versatile building block in organic synthesis for introducing the naphthol sulfonate moiety.
• Research & Development: Employed in academic and industrial R&D for developing new photoactive materials and functional dyes.
• Analytical Reagents: Potential use in the formulation of specific analytical reagents and indicators.

Basic Information

Product Name	2-Diazo-1-Naphthol-4-Sulfonate
CAS No.	64173-96-2
Molecular Formula	C10H5N2O4S
Molecular Weight	249.22 g/mol
Synonyms	1,2-Naphthoquinone-2-diazide-4-sulfonic Acid; 2-Diazo-1(2H)-naphthalenone-4-sulfonate; DNQ Sulfonate; 2,1,4-Diazonaphthoquinone Sulfonate; 2-Diazo-1-naphthol-4-sulfonic Acid; Photosensitive Compound DNQ; NQD Sulfonate; 64173-96-2
EINECS	Contact for details

Quality Control

Our 2-Diazo-1-Naphthol-4-Sulfonate is produced under stringent quality management protocols. Each batch undergoes comprehensive analytical testing to ensure high purity, consistent performance, and batch-to-batch reliability. Standard testing includes assay (HPLC), identification (IR), and impurity profiling. A Certificate of Analysis (COA) detailing all specifications is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated place at a controlled room temperature (15-25°C). This material is strictly light-sensitive and hygroscopic (moisture-sensitive); containers must be kept tightly sealed and opened only under appropriate, low-humidity conditions to prevent decomposition and moisture uptake.

Specification

Item	Specification
Appearance	Yellow to orange powder or crystalline solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Water Content (KF)	≤ 2.0%
Solubility	Soluble in polar organic solvents (e.g., acetone, DMF)

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