Description

5-Butyrylamino-Naphthalene-1-Sulfonyl Chloride is a specialized organic intermediate featuring a reactive sulfonyl chloride group and a butyrylamino substituent on a naphthalene backbone. This compound is valued for its utility as a key building block in the synthesis of more complex molecules, particularly fluorescent dyes, labeling reagents, and active pharmaceutical ingredients (APIs). It is primarily sought by research institutions and industrial manufacturers in the pharmaceutical, agrochemical, and specialty chemical sectors for developing novel compounds and advanced materials.

Application

• Fluorescent Probe and Dye Synthesis: A critical precursor for creating naphthalene-based fluorescent tags and sensors used in bioimaging and diagnostic assays.
• Pharmaceutical Intermediate: Serves as a key building block in the research and development of new active pharmaceutical ingredients (APIs) and drug candidates.
• Agrochemical Development: Used in the synthesis of novel herbicides, fungicides, and plant growth regulators.
• Polymer and Material Science: Acts as a functional monomer or cross-linking agent for creating advanced polymers with specific optical or chemical properties.
• Bioconjugation Reagent: The sulfonyl chloride group enables covalent attachment to amines in proteins, peptides, and other biomolecules for labeling studies.
• Chemical Research: Employed in academic and industrial R&D for exploring new organic reactions and synthesizing complex heterocyclic compounds.

Basic Information

Product Name	5-Butyrylamino-Naphthalene-1-Sulfonyl Chloride
CAS No.	728864-72-0
Molecular Formula	C₁₄H₁₄ClNO₃S
Molecular Weight	311.78 g/mol
Synonyms	5-Butyrylamino-1-naphthalenesulfonyl chloride; 1-Naphthalenesulfonyl chloride, 5-(butyrylamino)-; N-(1-Sulfochloridonaphthalen-5-yl)butyramide; 5-Butyrylamino-1-naphthalenesulphonyl chloride; Butyramide, N-[5-(chlorosulfonyl)-1-naphthalenyl]-; 5-Butyrylamino-naphthalene-1-sulfonylchloride
EINECS	Contact for details

Quality Control

Our 5-Butyrylamino-Naphthalene-1-Sulfonyl Chloride is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation via IR and NMR spectroscopy, to ensure it meets high-purity standards suitable for research and synthesis. A comprehensive Certificate of Analysis (COA) detailing all test results is provided with every shipment to guarantee traceability and consistency for our global B2B clients.

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 and reactivity as a strong acid/organic solvent derivative, the container must be kept tightly sealed under an inert atmosphere (e.g., nitrogen or argon) to prevent degradation from moisture and ensure maximum shelf life. Keep away from heat, open flames, and incompatible materials such as strong bases and oxidizing agents.

Specification

Item	Specification
Appearance	Off-white to light yellow crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Water Content (KF)	≤ 0.5%
Residue on Ignition	≤ 0.1%

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