Description

Dnp-L-Tryptophan CAS NO 1655-51-2 is a chemically modified derivative of the essential amino acid L-tryptophan, where the 2,4-dinitrophenyl (Dnp) group is attached. This modification is critical for advanced biochemical research and analytical applications, particularly in protein chemistry and peptide synthesis. It serves as a vital reagent and building block for researchers and manufacturers in the pharmaceutical, biotechnology, and life science sectors.

Application

• Biochemical Research Reagent: Used as a chromogenic derivative in amino acid analysis and protein sequencing studies.
• Peptide Synthesis Intermediate: Acts as a protected or tagged amino acid derivative in solid-phase and solution-phase peptide synthesis.
• Analytical Chemistry Standard: Employed as a reference standard in High-Performance Liquid Chromatography (HPLC) and mass spectrometry for method development and calibration.
• Enzyme Substrate & Inhibitor Studies: Utilized in investigations of enzyme kinetics and mechanisms involving tryptophan metabolism or modification.
• Pharmaceutical Development: Serves as a specialized intermediate in the research and development of novel therapeutic compounds and diagnostic agents.
• Protein Labeling & Conjugation: Facilitates the site-specific labeling of proteins and antibodies for various detection and imaging techniques.

Basic Information

Product Name	Dnp-L-Tryptophan
CAS No.	1655-51-2
Molecular Formula	C17H15N4O5
Molecular Weight	355.33 g/mol
Synonyms	N-(2,4-Dinitrophenyl)-L-tryptophan; DNP-L-Trp; DNP-Tryptophan; 2,4-Dinitrophenyl-L-tryptophan; (S)-2-Amino-3-(1H-indol-3-yl)-N-(2,4-dinitrophenyl)propanoic acid; N-2,4-DNP-L-tryptophan; L-Tryptophan, N-(2,4-dinitrophenyl)-; Dnp-Trp-OH
EINECS	Contact for details

Quality Control

Our Dnp-L-Tryptophan is produced under stringent quality management protocols. Each batch undergoes comprehensive analytical testing, including HPLC for purity, spectroscopic identification (IR, NMR), and chiral purity verification to ensure it meets the exacting standards required for research and development. Certificates of Analysis (COA) with detailed specifications are provided for 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 (store away from light). Keep the container tightly sealed to protect from moisture.

Specification

Item	Specification
Appearance	Yellow to orange crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Specific Rotation	Contact for details
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Chiral Purity (HPLC)	≥ 99.0% L-isomer

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