Description

2-Chloroethyl 6-Diazo-5,6-Dihydro-5-Oxonaphthalene-1-Sulphonate is a specialized diazonaphthoquinone sulfonate derivative, a key photochemical intermediate. This compound matters for its role in generating photoactive species upon exposure to specific light wavelengths, enabling precise chemical transformations. It is primarily needed by manufacturers in the advanced photoresist, specialty polymer, and fine chemical synthesis sectors for developing next-generation materials.

Application

• Photoresist Formulation: A critical photoacid generator (PAG) component in advanced photolithography processes for semiconductor and microelectronics manufacturing.
• Polymer Modification: Used to introduce photo-crosslinkable or cleavable sites into specialty polymers for advanced coatings and functional materials.
• Organic Synthesis: Serves as a versatile diazo transfer reagent and building block for synthesizing complex naphthalene-based compounds in pharmaceutical and agrochemical research.
• Chemical Amplification Systems: Employed in systems where a single photochemical event triggers a cascade of reactions, enhancing sensitivity in imaging applications.
• Research & Development: A valuable tool for academic and industrial R&D labs exploring novel photochemical reactions and material properties.

Basic Information

Product Name	2-Chloroethyl 6-Diazo-5,6-Dihydro-5-Oxonaphthalene-1-Sulphonate
CAS No.	42372-36-1
Molecular Formula	C₁₂H₉ClN₂O₅S
Molecular Weight	328.72 g/mol
Synonyms	6-Diazo-5,6-dihydro-5-oxo-1-naphthalenesulfonic Acid 2-Chloroethyl Ester; 2-Chloroethyl 6-Diazo-5-oxo-5,6-dihydronaphthalene-1-sulfonate; DNQ Sulfonate Ester; Photoacid Generator (PAG) Derivative; 1,2-Naphthoquinone-2-diazide-5-sulfonyl Chloride 2-Chloroethyl Ester; 42372-36-1; 2-Chloroethyl Ester of 1,2-Naphthoquinonediazide-5-sulfonic Acid
EINECS	Contact for details

Quality Control

Our 2-Chloroethyl 6-Diazo-5,6-Dihydro-5-Oxonaphthalene-1-Sulphonate is produced under strict quality management protocols. Each batch undergoes rigorous analytical testing to ensure high purity and consistent performance. Certificates of Analysis (COA) detailing purity, identity, and impurity profiles 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 place at a controlled room temperature (15-25°C). This material is light-sensitive (store away from light) and easily oxidized (store under inert atmosphere). For long-term storage, consider maintaining the product under an inert atmosphere such as argon or nitrogen.

Specification

Item	Specification
Appearance	Yellow to light brown crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Related Substances (HPLC)	Total impurities ≤ 5.0%
Water Content (KF)	≤ 1.0%
Residue on Ignition	≤ 0.5%

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