Description

1-Diazo-2-Naphthol-4-Sulfonic Acid is a specialized diazonium salt derivative of naphthalene, valued for its unique photochemical and coupling properties. This compound serves as a critical intermediate in the synthesis of dyes, pigments, and functional materials. It is essential for manufacturers and R&D laboratories in the photographic chemicals, dye and pigment, and advanced material synthesis sectors.

Application

• Dye and Pigment Intermediate: A key precursor for the synthesis of azo dyes and pigments, contributing to color strength and stability.
• Photographic Chemicals: Used in light-sensitive layers for specialized photographic papers and films.
• Coupling Agent: Functions in diazo-coupling reactions to produce complex organic molecules for research and industrial applications.
• Chemical Synthesis: Serves as a versatile building block in organic synthesis for pharmaceuticals and advanced materials.
• Analytical Reagent: Employed in specific analytical methods and as a reagent in laboratory research.

Basic Information

Product Name	1-Diazo-2-Naphthol-4-Sulfonic Acid
CAS No.	887-76-3
Molecular Formula	C₁₀H₆N₂O₄S
Molecular Weight	250.23 g/mol
Synonyms	1-Diazo-2-naphthol-4-sulfonic acid; 4-Sulfo-1,2-naphthoquinone 1-diazide; 1,2-Naphthoquinone-1-diazide-4-sulfonic acid; 2-Diazo-1-naphthol-4-sulfonic acid; 1,2-Naphthoquinone diazide sulfonic acid; DNQ sulfonic acid; Diazonaphthol sulfonic acid; 887-76-3
EINECS	212-954-5

Quality Control

Our 1-Diazo-2-Naphthol-4-Sulfonic Acid is produced under stringent quality management protocols. Each batch undergoes comprehensive analytical testing to ensure high purity, consistent performance, and traceability. Certificates of Analysis (COA) detailing purity, identity, and impurity profiles are provided to guarantee compliance with your specific application requirements.

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). This product is strictly light-sensitive and hygroscopic (moisture-sensitive); containers must be kept sealed to minimize exposure to moisture and all light sources.

Specification

Item	Specification
Appearance	Yellow to orange powder or crystals
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Water Content (KF)	≤ 5.0%
Solubility	Soluble in alkaline aqueous solutions

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