Description

3-(4-Nitrophenoxycarbonyl)-2,2,5,5-Tetramethyl-1-Pyrrolidinyloxy is a nitroxide radical derivative, specifically a pyrrolidine-based spin label. This compound matters as a critical tool in advanced research, enabling the study of molecular dynamics, structure, and interactions through techniques like Electron Paramagnetic Resonance (EPR) spectroscopy. It is primarily needed by researchers and scientists in the fields of biophysics, structural biology, and materials science for site-directed spin labeling applications.

Application

• Site-Directed Spin Labeling (SDSL) in proteins and nucleic acids for structural analysis.
• EPR Spectroscopy studies to investigate molecular mobility, distances, and local environment.
• Biophysical Research for probing protein folding, conformational changes, and macromolecular interactions.
• Polymer Science as a spin probe for analyzing polymer chain dynamics and morphology.
• Membrane Studies to investigate lipid bilayer properties and protein-membrane interactions.
• Development of Advanced Materials with specific magnetic or redox properties.

Basic Information

Product Name	3-(4-Nitrophenoxycarbonyl)-2,2,5,5-Tetramethyl-1-Pyrrolidinyloxy
CAS No.	21913-97-3
Molecular Formula	C15H19N2O5
Molecular Weight	307.32 g/mol
Synonyms	4-Nitrophenyl 2,2,5,5-Tetramethyl-3-pyrrolin-1-oxyl-3-carboxylate; 3-Carboxy-2,2,5,5-tetramethylpyrrolidin-1-oxyl 4-Nitrophenyl Ester; PROXYL Nitrophenyl Ester; 4-Nitrophenyl PROXYL Ester; 3-(4-Nitrophenyloxycarbonyl)-PROXYL; 21913-97-3; 3-Carboxy-PROXYL 4-Nitrophenyl Ester; Nitroxide Spin Label Ester
EINECS	Contact for details

Quality Control

Our 3-(4-Nitrophenoxycarbonyl)-2,2,5,5-Tetramethyl-1-Pyrrolidinyloxy is produced under strict quality protocols to ensure high purity and batch-to-batch consistency, essential for sensitive research applications. All materials are characterized by advanced analytical techniques. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and assay is provided with each shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at 15-25°C. This material is hygroscopic (moisture-sensitive) and light-sensitive; ensure the container is sealed under an inert atmosphere if specified and kept in a desiccator to minimize exposure to moisture.

Specification

Item	Specification
Appearance	Orange to red crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
EPR Assay	≥ 95.0%
Melting Point	Contact for details
Water Content (KF)	≤ 1.0%

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