Description

n-(4-Aminobutyl)-5-Chloro-2-Naphthalenesulfonamide is a specialized organic intermediate featuring a naphthalene sulfonamide core with a chloro substituent and a terminal aminobutyl chain. This molecular architecture makes it a valuable building block for the synthesis of more complex compounds, particularly in pharmaceutical research and fine chemical manufacturing. It is primarily sought by R&D chemists and process development scientists in the life sciences sector for creating novel active pharmaceutical ingredients (APIs) and biochemical probes.

Application

• Pharmaceutical Intermediate: Key precursor in the synthesis of potential therapeutic agents, particularly those targeting enzyme inhibition or receptor modulation.
• Biochemical Research: Used as a scaffold or derivatization agent in the development of fluorescent probes, enzyme substrates, or affinity labels for biological studies.
• Organic Synthesis Building Block: Serves as a versatile intermediate for constructing complex molecules in medicinal chemistry and material science projects.
• Dye and Pigment Synthesis: The naphthalene sulfonamide structure can be utilized in the development of specialized dyes and functional colorants.

Basic Information

Product Name	n-(4-Aminobutyl)-5-Chloro-2-Naphthalenesulfonamide
CAS No.	81705-04-6
Molecular Formula	C₁₄H₁₇ClN₂O₂S
Molecular Weight	312.81 g/mol
Synonyms	5-Chloro-N-(4-aminobutyl)-2-naphthalenesulfonamide; 5-Chloro-2-naphthalenesulfonamide, N-(4-aminobutyl)-; N-(4-Aminobutyl)-5-chloro-2-naphthalenesulfonamide; W-7 hydrochloride precursor; Calmodulin antagonist intermediate; N-(4-Aminobutyl)-5-chloronaphthalene-2-sulfonamide
EINECS	Contact for details

Quality Control

Our n-(4-Aminobutyl)-5-Chloro-2-Naphthalenesulfonamide is produced under strict quality management protocols to ensure batch-to-batch consistency and high purity suitable for research and development applications. Each lot is characterized by modern analytical techniques including HPLC, NMR, and mass spectrometry. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with every shipment to support your quality assurance processes.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at 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.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms to structure
Identification (HPLC)	Retention time matches reference standard
Purity (HPLC)	≥ 97.0%
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.