Description

5-(Formylamino)-1-Naphthalenesulfonyl Chloride is a specialized naphthalene-based sulfonyl chloride derivative, serving as a high-value chemical intermediate. Its primary commercial value lies in its reactive sulfonyl chloride group, which enables its use in the synthesis of more complex sulfonamide and sulfonate compounds. This product is essential for research and development chemists and process engineers in the pharmaceutical, agrochemical, and advanced materials sectors who require a reliable, high-purity building block for their synthetic pathways.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of active pharmaceutical ingredients (APIs), particularly for compounds containing sulfonamide functional groups.
• Agrochemical Synthesis: Used in the development of novel herbicides, fungicides, and insecticides where the sulfonyl moiety is integral to biological activity.
• Dye and Pigment Manufacturing: Serves as an intermediate in the production of specialized naphthalene-based dyes and colorants.
• Polymer Modification: Employed to introduce sulfonyl groups into polymer chains, altering properties like solubility, thermal stability, or reactivity.
• Chemical Research & Development: A valuable building block in organic synthesis for creating libraries of novel compounds in medicinal and materials chemistry.
• Ligand and Catalyst Preparation: Used to functionalize molecules for use as ligands in catalytic systems or in metal-organic frameworks (MOFs).

Basic Information

Product Name	5-(Formylamino)-1-Naphthalenesulfonyl Chloride
CAS No.	680618-20-6
Molecular Formula	C11H8ClNO3S
Molecular Weight	269.70 g/mol
Synonyms	1-Naphthalenesulfonyl chloride, 5-(formylamino)-; 5-Formamido-1-naphthalenesulfonyl chloride; 5-(Formylamino)naphthalene-1-sulfonyl chloride; N-Formyl-5-amino-1-naphthalenesulfonyl chloride; 5-Amino-1-naphthalenesulfonyl chloride N-formyl derivative; 680618-20-6; 5-FANSC
EINECS	Contact for details

Quality Control

Our 5-(Formylamino)-1-Naphthalenesulfonyl Chloride is manufactured under strict quality protocols to ensure batch-to-batch consistency and high purity. Each lot undergoes comprehensive analytical testing, including HPLC for assay and purity determination, to meet the stringent requirements of our global B2B clients. A Certificate of Analysis (COA) detailing all specifications is provided with every shipment to support your quality assurance and regulatory compliance 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 prevent degradation from atmospheric moisture. Keep away from incompatible materials such as strong bases, amines, and oxidizing agents.

Specification

Item	Specification
Appearance	Off-white to light yellow crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 97.0%
Purity (HPLC)	≥ 98.0%
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.