Description

Dansyl-L-Asparagine is a high-purity, fluorescently labeled derivative of the amino acid L-asparagine, widely recognized under CAS No. 1100-23-8. This compound serves as a critical reagent in advanced biochemical research and analytical method development, where precise molecular tagging is required. It is primarily utilized by researchers and quality control laboratories in the pharmaceutical, biotechnology, and diagnostic sectors for applications such as protein sequencing, fluorescence spectroscopy, and chromatographic analysis.

Application

• Biochemical Research & Protein Sequencing: Used as a fluorescent probe or marker in Edman degradation and other sequencing techniques to label and detect amino acids.
• Chromatographic Standards & Method Development: Serves as a high-purity reference standard for calibrating HPLC, UPLC, and LC-MS systems in analytical laboratories.
• Fluorescence Spectroscopy & Assay Development: Employed in the development of sensitive fluorescence-based assays and studies of protein structure and interactions.
• Pharmaceutical Analysis: Acts as a key intermediate or analytical tool in the quality control and research of peptide-based pharmaceuticals.
• Diagnostic Reagent Manufacturing: Utilized in the synthesis of components for diagnostic kits and biosensors that rely on fluorescent detection.
• Academic & Institutional Research: A fundamental tool in university and institutional labs for teaching and investigating advanced biochemical techniques.

Basic Information

Product Name	Dansyl-L-Asparagine
CAS No.	1100-23-8
Molecular Formula	C16H21N3O5S
Molecular Weight	367.42 g/mol
Synonyms	5-(Dimethylamino)naphthalene-1-sulfonyl-L-asparagine; Dansyl-L-Asn; Nα-(5-Dimethylaminonaphthalene-1-sulfonyl)-L-asparagine; L-Asparagine, N-[5-(dimethylamino)-1-naphthalenyl]sulfonyl]-; DNS-L-Asn; 1-Dimethylaminonaphthalene-5-sulfonamido-L-asparagine; N-Dansyl-L-asparagine
EINECS	214-158-3

Quality Control

Our Dansyl-L-Asparagine is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including HPLC for purity verification and spectroscopic methods for identity confirmation, to ensure it meets the high standards required for research and analytical applications. A Certificate of Analysis (COA) detailing specific results for purity, identity, 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 (15-25°C). The product is light-sensitive and should be handled under appropriate conditions to prevent degradation.

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%
Specific Rotation	Contact for details
Water Content (KF)	≤ 1.0%
Heavy Metals	≤ 20 ppm

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