Description

5-[Acetyl(Methylsulfonyl)Amino]-1-(Acetyloxy)-2-Naphthalenesulfonic Acid Chloride is a specialized, high-purity sulfonyl chloride derivative used as a critical synthetic intermediate. This compound matters for its role in constructing complex molecules, particularly in the development of advanced dyes, pigments, and active pharmaceutical ingredients (APIs). It is primarily needed by research institutions and industrial manufacturers in the fine chemical, pharmaceutical, and specialty colorant sectors for precise, multi-step organic synthesis.

Application

• Pharmaceutical Intermediate: A key building block in the synthesis of novel drug candidates, particularly those with naphthalene-based structures.
• Dye & Pigment Synthesis: Used in the production of high-performance, sulfonated azo dyes and pigments for textiles, inks, and coatings.
• Functional Material Research: Serves as a precursor for creating advanced materials with specific optical or electronic properties.
• Agrochemical Development: Employed in the research and synthesis of new generation herbicides and pesticides.
• Chemical Biology Probes: Utilized to create labeled compounds or affinity probes for biochemical and diagnostic research.
• Polymer Modification: Acts as a reactive monomer or cross-linking agent to introduce sulfonic acid groups into polymer chains.

Basic Information

Product Name	5-[Acetyl(Methylsulfonyl)Amino]-1-(Acetyloxy)-2-Naphthalenesulfonic Acid Chloride
CAS No.	71205-36-2
Molecular Formula	C₁₅H₁₄ClNO₇S₂
Molecular Weight	427.86 g/mol
Synonyms	5-[Acetyl(methylsulfonyl)amino]-1-(acetyloxy)naphthalene-2-sulfonyl chloride; 1-Acetoxy-5-[N-acetyl-N-(methylsulfonyl)amino]naphthalene-2-sulfonyl chloride; 5-(Acetyl-methylsulfonyl-amino)-1-acetoxy-naphthalene-2-sulfonyl chloride; N-Acetyl-N-(1-acetoxy-2-sulfonylchloridenaphth-5-yl)methanesulfonamide; 1-Acetoxy-5-(N-acetyl-N-methylsulfonylamino)-2-naphthalenesulfonyl chloride
EINECS	Contact for details

Quality Control

Our 5-[Acetyl(Methylsulfonyl)Amino]-1-(Acetyloxy)-2-Naphthalenesulfonic Acid Chloride is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure it meets the high standards required for research and industrial synthesis. A comprehensive Certificate of Analysis (COA) detailing purity, assay, and impurity profiles is provided with every shipment to guarantee traceability and consistency.

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 sealed under an inert atmosphere (e.g., nitrogen or argon) after opening to prevent degradation. Keep away from heat, sparks, open flames, and incompatible materials such as strong bases, amines, and alcohols.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Water Content (KF)	≤ 0.5%
Related Substances (HPLC)	Total impurities ≤ 2.0%
Single Unknown Impurity	≤ 0.5%
Solubility	Soluble in polar aprotic solvents (e.g., DMF, DMSO)

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