Description

2-Diazo-1-Naphthol-4-Sulfonic Acid Hydrate is a specialized diazonium salt derivative, a key photochemical intermediate valued for its reactivity under light exposure. This compound is essential for applications requiring precise photo-initiated crosslinking or color formation. It is primarily utilized by manufacturers in the photoresist, dye, and specialty chemical synthesis industries.

Application

• Photoresist and Photoimaging Agents: A critical component in the formulation of light-sensitive coatings and printing plates for the electronics and printing industries.
• Dye and Pigment Intermediate: Serves as a precursor in the synthesis of azo dyes and complex organic pigments.
• Crosslinking Agent: Used in photo-curable polymers and resins for coatings, adhesives, and advanced materials.
• Chemical Synthesis: An important building block for synthesizing other naphthalene-based sulfonic acid derivatives and diazo compounds.
• Analytical Reagent: Employed in specific analytical methods and as a reagent in research laboratories.

Basic Information

Product Name	2-Diazo-1-Naphthol-4-Sulfonic Acid Hydrate
CAS No.	20680-48-2
Molecular Formula	C10H6N2O4S · xH2O
Molecular Weight	250.23 (Anhydrous basis)
Synonyms	2-Diazo-1-naphthol-4-sulfonic acid; 1,2-Naphthoquinone-2-diazide-4-sulfonic acid; DNQ; 2-Diazo-1(2H)-naphthalenone-4-sulfonic acid; 2,1-Diazonaphthoquinone-4-sulfonic acid; 2-Diazo-1-naphthol-4-sulphonic acid; 4-Sulfo-1,2-naphthoquinone-2-diazide; 1,2-Naphthoquinone diazide-4-sulfonic acid
EINECS	243-935-6

Quality Control

Our 2-Diazo-1-Naphthol-4-Sulfonic Acid Hydrate is produced under strict quality management protocols. Each batch undergoes comprehensive analytical testing to ensure consistent purity, performance, and stability. Certificates of Analysis (COA) detailing assay, impurity profile, and other critical 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 a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after opening to minimize exposure to atmospheric humidity.

Specification

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

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