Date published: 2025-10-7

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Spin Traps, Spin Probes and Spin Labels

Santa Cruz Biotechnology now offers a broad range of Spin Traps, Spin Probes, and Spin Labels for use in various applications. Spin traps, spin probes, and spin labels are specialized chemicals used extensively in electron paramagnetic resonance (EPR) spectroscopy to detect, identify, and quantify free radicals and other paramagnetic species in various research contexts. Spin traps are compounds that react with transient free radicals to form more stable radical adducts, which can then be studied via EPR to provide insights into the dynamics and mechanisms of radical formation and decay. Spin probes are stable radicals that interact with their environment, allowing researchers to study the microenvironmental conditions, such as polarity and viscosity, within biological membranes or synthetic materials. Spin labels are specific molecules covalently attached to proteins, nucleic acids, or other macromolecules, facilitating the study of molecular structure, dynamics, and interactions through EPR. These tools are invaluable in fields such as biochemistry, molecular biology, and materials science, where understanding the behavior of free radicals and the structural properties of macromolecules is crucial. They enable the detailed study of oxidative stress, enzymatic activity, and the physical properties of polymers and other complex systems. By offering a diverse selection of high-quality spin traps, spin probes, and spin labels, Santa Cruz Biotechnology supports the scientific community in performing accurate and reproducible experiments, leading to new discoveries and advancements in various research areas. View detailed information on our available Spin Traps, Spin Probes, and Spin Labels by clicking on the product name.

Items 31 to 40 of 90 total

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Product NameCAS #Catalog #QUANTITYPriceCitationsRATING

4-(2-Iodoacetamido)-TEMPO

25713-24-0sc-252080
10 mg
$85.00
(0)

4-(2-Iodoacetamido)-TEMPO is a specialized spin trap and probe that excels in capturing transient radical species through its unique iodoacetamido moiety, which facilitates selective interactions with reactive intermediates. This compound exhibits remarkable stability and reactivity, allowing it to engage in rapid electron transfer processes. Its distinctive structure enhances its ability to probe microenvironments, providing insights into radical behavior and reaction kinetics in diverse chemical contexts.

2,2,5,5-Tetramethyl-3-amino-pyrrolidine-1-oxyl Free Radical

34272-83-8sc-209287
25 mg
$360.00
(0)

2,2,5,5-Tetramethyl-3-amino-pyrrolidine-1-oxyl Free Radical is a versatile spin probe known for its exceptional ability to interact with free radicals, enabling the study of radical dynamics in various environments. Its unique nitrogen-centered radical structure allows for efficient electron delocalization, enhancing its stability. This compound's distinctive reactivity profile facilitates the exploration of reaction mechanisms and kinetics, making it a valuable tool for investigating radical-mediated processes.

4-Isothiocyanato-2,2,6,6-tetramethylpiperidine 1-oxyl

36410-81-8sc-254691
250 mg
$999.00
(0)

4-Isothiocyanato-2,2,6,6-tetramethylpiperidine 1-oxyl is a specialized spin trap that exhibits remarkable selectivity for reactive species, particularly in complex biological systems. Its unique isothiocyanate group enhances nucleophilic interactions, allowing for the effective capture of transient radicals. The compound's sterically hindered structure contributes to its stability and reactivity, enabling detailed studies of radical formation and decay pathways, as well as insights into electron transfer processes.

4-Ethoxyfluorophosphinyloxy TEMPO

37566-53-3sc-210040
10 mg
$290.00
(0)

4-Ethoxyfluorophosphinyloxy TEMPO is a sophisticated spin probe known for its exceptional reactivity with free radicals, facilitating the investigation of oxidative stress and radical dynamics. Its fluorophosphinyloxy moiety enhances electron delocalization, promoting rapid spin exchange and improving sensitivity in detecting transient species. The compound's unique steric configuration allows for selective interactions, making it a powerful tool for elucidating complex radical mechanisms and reaction kinetics in various environments.

Methyl 5-DOXYL-stearate, free radical

38568-24-0sc-253031
10 mg
$112.00
(0)

Methyl 5-DOXYL-stearate is a specialized spin probe that exhibits remarkable stability and sensitivity in detecting free radicals. Its unique long-chain structure enhances solubility in lipid environments, allowing for effective monitoring of radical processes in biological membranes. The presence of the 5-DOXYL group facilitates electron spin resonance (ESR) studies, providing insights into molecular dynamics and interactions. This compound's distinct reactivity patterns enable detailed exploration of radical formation and decay pathways.

3β-DOXYL-5α-cholestane, free radical

55569-61-4sc-507269
5 mg
$300.00
(0)

POBN

66893-81-0sc-203201
sc-203201A
500 mg
1 g
$190.00
$288.00
(0)

POBN is a prominent spin trap that excels in capturing transient free radicals, enabling detailed studies of radical formation and decay. Its unique structure promotes effective electron spin resonance (ESR) detection, allowing researchers to probe reaction mechanisms and kinetics in various environments. The compound's ability to form stable adducts with radicals enhances its utility in elucidating complex chemical pathways, making it a valuable tool for understanding radical chemistry.

4-Bromo-3-hydroxymethyl-1-oxyl-2,2,5,5-tetramethyl-δ3-pyrroline

85591-93-1sc-209974
10 mg
$320.00
(0)

4-Bromo-3-hydroxymethyl-1-oxyl-2,2,5,5-tetramethyl-δ3-pyrroline serves as an effective spin probe, characterized by its distinctive ability to interact with free radicals through a stable nitroxide moiety. This compound facilitates the investigation of radical dynamics and environmental influences on reaction rates. Its unique electron delocalization enhances sensitivity in electron spin resonance studies, providing insights into molecular interactions and the behavior of reactive species in diverse chemical systems.

DMPIO

123557-86-8sc-221559
sc-221559A
10 mg
50 mg
$31.00
$58.00
(0)

DMPIO is a versatile spin trap known for its robust reactivity with transient radicals, forming stable adducts that can be analyzed via electron spin resonance. Its unique structure allows for selective interactions with various radical species, enabling detailed studies of reaction mechanisms and kinetics. The compound's electron-withdrawing characteristics enhance its ability to stabilize radical intermediates, making it a valuable tool for probing complex chemical environments and elucidating radical pathways.

TMIO

136440-22-7sc-205980
sc-205980A
50 mg
250 mg
$60.00
$187.00
(0)

TMIO is a specialized spin trap that exhibits remarkable selectivity in capturing free radicals, forming stable spin adducts suitable for electron paramagnetic resonance (EPR) analysis. Its unique electronic structure facilitates specific interactions with diverse radical species, allowing for the exploration of intricate reaction dynamics. The compound's ability to stabilize radical intermediates through unique molecular interactions provides insights into radical formation and decay processes, enhancing our understanding of radical chemistry.