Description

n-ε-Dansyl-L-Lysine is a fluorescently labeled derivative of the amino acid L-lysine, featuring a dansyl (5-dimethylaminonaphthalene-1-sulfonyl) group attached to its ε-amino side chain. This compound is a critical reagent in biochemical research and analytical chemistry, valued for its strong fluorescence and ability to act as a probe or tag. It is primarily used by researchers and manufacturers in the pharmaceutical, diagnostic, and life science sectors for applications such as protein sequencing, fluorescence labeling, and as a high-purity reference standard.

Application

• Fluorescence Labeling Reagent: Used to tag proteins, peptides, and other biomolecules for detection and quantification via fluorescence spectroscopy or microscopy.
• Biochemical Research Standard: Serves as a high-purity reference compound in method development and validation for amino acid analysis.
• Proteomics and Protein Sequencing: Employed in Edman degradation and other sequencing techniques to identify and characterize protein structures.
• Diagnostic Kit Component: Incorporated into assay kits for the detection and measurement of specific enzymes or biomarkers.
• Chromatography Standard: Used as a calibration standard in HPLC and other chromatographic systems for quality control.
• Enzyme Substrate Analog: Acts as a substrate or inhibitor in enzymatic studies to investigate reaction mechanisms.

Basic Information

Product Name	n-ε-Dansyl-L-Lysine
CAS No.	1101-84-4
Molecular Formula	C20H29N3O4S
Molecular Weight	407.53 g/mol
Synonyms	Nε-Dansyl-L-lysine; N6-Dansyl-L-lysine; L-Lysine, N6-(5-dimethylaminonaphthalene-1-sulfonyl)-; Dansyllysine; DNS-Lys; ε-Dansyl-L-lysine; 5-Dimethylaminonaphthalene-1-sulfonyl-L-lysine
EINECS	214-165-6

Quality Control

Our n-ε-Dansyl-L-Lysine is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including HPLC for purity, to ensure it meets the high standards required for research and diagnostic applications. A Certificate of Analysis (COA) detailing specific results for identity, purity, and related substances is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (typically 15-25°C). This product is light-sensitive and should be handled accordingly to maintain stability.

Specification

Item	Specification
Appearance	Yellow to light brown powder or crystalline solid
Identification (IR)	Conforms to structure
Identification (HPLC)	Retention time matches reference standard
Purity (HPLC)	≥ 98.0%
Water Content	≤ 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.