Description

3-Carbamoyl-Proxyl is a stable nitroxide radical compound, widely recognized as a versatile spin label and probe in electron paramagnetic resonance (EPR) spectroscopy. Its primary value lies in its ability to provide critical insights into molecular dynamics, structure, and local environment within complex chemical and biological systems. This product is essential for researchers and developers in the fields of biophysics, structural biology, polymer science, and materials chemistry who require reliable tools for advanced spectroscopic analysis.

Application

• As a spin label for site-directed spin labeling (SDSL) studies of protein structure and dynamics.
• As a molecular probe in EPR spectroscopy to investigate membrane fluidity, lipid-protein interactions, and micelle properties.
• For studying polymer chain mobility, free volume, and degradation processes in advanced materials.
• In oxidative stress research as a stable radical for calibrating instruments and studying radical scavenging activity.
• As a contrast agent or redox probe in specialized magnetic resonance and imaging applications.
• For surface modification and functionalization where a stable radical moiety is required.

Basic Information

Product Name	3-Carbamoyl-Proxyl
CAS No.	4399-80-8
Molecular Formula	C9H17N2O2
Molecular Weight	185.25 g/mol
Synonyms	3-Carbamoyl-2,2,5,5-tetramethyl-1-pyrrolidinyloxy; 3-Carbamoyl-PROXYL; 3-CP; 2,2,5,5-Tetramethyl-3-carbamoylpyrrolidine-1-oxyl; 3-Carbamoyl-2,2,5,5-tetramethylpyrrolidin-1-oxyl; 3-Carbamoyl-2,2,5,5-tetramethylpyrrolidine N-oxyl; 3-Carbamoyl-2,2,5,5-tetramethyl-1-pyrrolidinyloxyl free radical
EINECS	Contact for details

Quality Control

Our 3-Carbamoyl-Proxyl is manufactured under strict quality protocols to ensure high purity and batch-to-batch consistency, suitable for sensitive research applications. Each lot is characterized using advanced analytical techniques including EPR, HPLC, and NMR to confirm identity, purity, and radical concentration. A comprehensive Certificate of Analysis (COA) detailing all test results 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). For long-term stability, consider storage under an inert atmosphere such as argon or nitrogen to minimize potential degradation of the nitroxide radical.

Specification

Item	Specification
Appearance	Orange to red crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
EPR Analysis	Characteristic triplet signal
Water Content (KF)	≤ 0.5%
Residue on Ignition	≤ 0.1%

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