99.50% 2-diazo-1-naphthol-5-sulfonyl chloride DNQ CAS 3770-97-6 C₁₀H₆ClN₂O₄S, used in semiconductor photoresists, electronic chemicals, printing plate photosensitive materials, and fine chemical inter

Product Name: 2-Diazo-1-naphthol-5-sulfonyl chloride 
English Name: 2-Diazo-1-naphthol-5-sulfonyl chloride
Abbreviation: DNQ
CAS Number: 3770-97-6
Molecular Formula: C10H6ClN2O4S
Product Purity: 99.50%
Appearance: Yellow to orange-yellow powder

This product belongs to photosensitive material intermediates, electronic chemicals, and fine chemical functional materials.

II. Product Quality Indicators (Refer to Jiayuan COA)

Product Name: 2-diazo-1-naphthol-5-sulfonyl chloride
CAS: 3770-97-6
Batch No.: 20260320
Production Date: 2026.03.20
Report Date: 2026.03.21

Quality Indicators:
Appearance: Yellow to orange-yellow powder, meeting the requirements
Maximum single impurity: 0.31% (standard ≤0.5%)
Loss on drying: 0.04% (standard ≤0.1%)
Purity: 99.50% (standard ≥99.0%)

III. Product Nature and Functional Features

DNQ's molecular structure contains a diazo group, a naphthalene ring, and a sulfonyl chloride group, exhibiting photosensitive properties.

Key characteristics:
1. Excellent photosensitivity, suitable for use as a photoactive compound;
2. High purity requirements, suitable for the electronic chemicals field;
3. Minimal impact of impurities and moisture on photolithography performance;
4. Applicable to the synthesis of functional photosensitive materials and derivatization.

IV. Main Application Areas in the Russian Market

1. In the semiconductor and electronics industry,
DNQ is an important photosensitive agent (Photo Active Compound, PAC) in positive photoresist systems, used in wafer fabrication, integrated circuit processing, and microelectronic pattern transfer.

2. In the printing and plate-making industry,
it is used in PS plates, photosensitive plates, and image transfer materials to improve plate-making accuracy and stability.

3. In the electronic chemicals supply chain,
Russian electronic manufacturers, research institutions, and importers can purchase high-purity DNQ as a photolithography material and research raw material.

4. In fine chemical research and development
, it is used as an intermediate of diazo aromatic compounds in the development of novel photosensitive materials.

V. Key Considerations for Procurement in the Russian Market

Russian customers purchasing DNQ products primarily focus on the following:

1. Purity Grade:
Electronic chemicals customers typically prioritize high-purity products (≥99%), and this batch boasts a purity of 99.50%.

2. Impurity Control:
The maximum single impurity is controlled within 0.31%, meeting the requirements for high-purity applications.

3. Batch Stability:
Photolithography materials require high batch consistency.

4. Technical Documentation:
Customers typically require COA, TDS, SDS, and export documentation.

VI. Product Supply Advantages

1. High-purity products are supplied
with a purity of 99.50%, meeting the requirements for electronic chemical applications.

2. Stable quality control
ensures complete quality inspection reports are provided.

3. Suitable for international trade;
export-ready technical data and documentation are available.