Description

2-Diazo-1-Naphthol-4-Sulfonyl Chloride is a specialized diazonium compound and a key sulfonylating reagent in organic synthesis. Its value lies in its ability to act as a versatile intermediate for introducing the naphthol-diazo-sulfonyl functional group into target molecules. This product is essential for researchers and manufacturers in the pharmaceutical, agrochemical, and dye industries, particularly for the synthesis of photoactive compounds, analytical reagents, and complex chemical architectures.

Application

• Pharmaceutical Intermediate: A critical building block for synthesizing active pharmaceutical ingredients (APIs) and diagnostic agents.
• Photoacid Generator (PAG) Precursor: Used in the formulation of advanced photoresists for semiconductor and microelectronics manufacturing.
• Dye and Pigment Synthesis: Serves as an intermediate for producing azo dyes, naphthol dyes, and other colorants.
• Analytical Chemistry Reagent: Employed in the derivatization of compounds for detection and analysis via chromatography or spectroscopy.
• Polymer Modification: Used to functionalize polymers by introducing sulfonyl and diazo groups to alter material properties.
• Crosslinking Agent: Can facilitate crosslinking reactions in specialty polymer and resin systems.
• Bioconjugation Chemistry: Acts as a linker or modifying agent for labeling biomolecules in research applications.
• Agrochemical Synthesis: Intermediate in the production of certain herbicides, fungicides, and plant growth regulators.

Basic Information

Product Name	2-Diazo-1-Naphthol-4-Sulfonyl Chloride
CAS No.	36451-09-9
Molecular Formula	C10H5ClN2O3S
Molecular Weight	268.67 g/mol
Synonyms	1,2-Naphthoquinone-2-diazide-4-sulfonyl chloride; 2-Diazo-1(2H)-naphthalenone-4-sulfonyl chloride; DNQ Sulfonyl Chloride; NDSC; 1,2-Naphthoquinonediazide-4-sulfonyl chloride; 4-Sulfonyl chloride-1,2-naphthoquinone-2-diazide; 2-Diazo-1-naphthol-4-sulfonic acid chloride; Photoactive Compound PAC
EINECS	Contact for details

Quality Control

Our 2-Diazo-1-Naphthol-4-Sulfonyl Chloride is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation (IR, NMR), to ensure it meets precise customer specifications and industry standards. Certificates of Analysis (COA) documenting all critical quality attributes are available upon request.

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 hygroscopic (moisture-sensitive) and light-sensitive; therefore, containers must be kept tightly sealed under an inert atmosphere (e.g., nitrogen or argon) and away from moisture and direct light exposure to maintain stability and purity.

Specification

Item	Specification
Appearance	Yellow to orange crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Melting Point	Contact for details
Water Content (KF)	≤ 0.5%
Heavy Metals	≤ 20 ppm
Residue on Ignition	≤ 0.1%
Solubility	Soluble in common organic solvents (e.g., acetone, THF)

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