Why is "4-hydroxy-2,2,6,6-tetramethylpiperidin-1-oxyl" trending?
Latest news, Wikipedia summary, and trend analysis.
Trend Analysis
- Ranking position: #
- Date: 2026-04-28 21:56:48
This topic has appeared in the trending rankings 1 time(s) in the past year. While it does not trend frequently, its appearance suggests a renewed or concentrated surge of public interest.
Based on Wikipedia pageviews and search interest, this topic gained significant attention on the selected date.
Trend Insight
4-hydroxy-2,2,6,6-tetramethylpiperidin-1-oxyl entered the ranking for the first time today at position #. This is its highest position ever recorded.
Trend History
This topic has appeared in the English Wikipedia rankings 1 time. It first appeared on 2026-04-28 and was most recently seen on 2026-04-28.
Wikipedia Overview
4-Hydroxy-TEMPO or TEMPOL, formally 4-hydroxy-2,2,6,6-tetramethylpiperidin-1-oxyl, is a heterocyclic compound. Like the related TEMPO, it is used as a catalyst and chemical oxidant by virtue of being a stable aminoxyl radical. Its major appeal over TEMPO is that it is less expensive, being produced from triacetone amine, which is itself made via the condensation of acetone and ammonia. This makes it economically viable on an industrial scale.
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Trending Topic Today
Search Interest Perspective
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Hydropersulfides inhibit lipid peroxidation and ferroptosis by scavenging radicals - Nature
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Trimethylamine-N-Oxide Promotes Age-Related Vascular Oxidative Stress and Endothelial Dysfunction in Mice and Healthy Humans | Hypertension - American Heart Association Journals
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The effect of TEMPOL pretreatment on postoperative cognitive function, inflammatory response, and oxidative stress in aged rats under sevoflurane anesthesia - Wiley Online Library
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Charge-Transfer Complexes as New Inhibitors/Photoinitiators for On-Demand Amine/Peroxide Redox Polymerization - ACS Publications
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Synergistic enhancement of electrochemical alcohol oxidation by combining NiV-layered double hydroxide with an aminoxyl radical - Nature
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Decarboxylation of Poly[N‐(acryloyloxy)phthalimide] as a Versatile Tool for Postpolymerization Modification - Wiley Online Library
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The Cancer Therapy-Related Clonal Hematopoiesis Driver Gene Ppm1d Promotes Inflammation and Non-Ischemic Heart Failure in Mice - American Heart Association Journals
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A TEMPO supported-deep eutectic solvent as a novel and capable catalyst for alcohol oxidations - Nature
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17O Hyperfine Spectroscopy Reveals Hydration Structure of Nitroxide Radicals in Aqueous Solutions - Wiley Online Library
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Hyperglycemia Acutely Increases Cytosolic Reactive Oxygen Species via O-linked GlcNAcylation and CaMKII Activation in Mouse Ventricular Myocytes | Circulation Research - American Heart Association Journals
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Effect of very long-term storage and multiple freeze and thaw cycles on 11-dehydro-thromboxane-B - Nature
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Electron paramagnetic resonance and spin trapping to detect free radicals from allergenic hydroperoxides in contact with the skin: From the molecule to the tissue - Wiley Online Library
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A fast electrochromic polymer based on TEMPO substituted polytriphenylamine - Nature
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Gaining Insight into the Electrochemical Interface Dynamics in an Organic Redox Flow Battery with a Kinetic Monte Carlo Approach - Wiley Online Library
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Gut Microbiome-Derived Metabolite Trimethylamine N-Oxide Induces Aortic Stiffening and Increases Systolic Blood Pressure With Aging in Mice and Humans - American Heart Association Journals
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Crystallization-induced mechanofluorescence for visualization of polymer crystallization - Nature
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Room-temperature electrochemical hydroxyalkylation of pyridines - Nature
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inhibition of complex III to exacerbate ROS production in a cellular model of Parkinson’s disease - Nature
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Proteomic signatures of acute oxidative stress response to paraquat in the mouse heart - Nature
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Attenuating N -Oxyl Decomposition for Improved Hydrogen Atom Transfer Catalysts - Wiley Online Library
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AI Drug Discovery Chemistry Hits Wet Lab: GPT-5.4 Boosts Chan-Lam Yields in 10,080 Reactions - Tech Times
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Ni-Catalyzed Linearizable Cyclization/Coupling with Detachable Silicon-Oxygen Linker: Access to 1,2-Oxasilolanes, 3-Hydroxysilanes and 4-Arylalkanols - Wiley Online Library
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Fast-field-cycling ultralow-field nuclear magnetic relaxation dispersion - Nature
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Facile charge transport and storage by a TEMPO-populated redox mediating polymer integrated with polyaniline as electrical conducting path - Nature
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A General Iron‐Catalyzed Decarboxylative Oxygenation of Aliphatic Carboxylic Acids - Wiley Online Library
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Activation of NADPH oxidases leads to DNA damage in esophageal cells - Nature
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Ursodeoxycholic acid improves liver function via phenylalanine/tyrosine pathway and microbiome remodelling in patients with liver dysfunction - Nature
Why This Topic Is Trending
This topic has recently gained attention due to increased public interest. Search activity and Wikipedia pageviews suggest growing global engagement.
Search Interest & Related Topics
Search interest data over the past 12 months indicates that this topic periodically attracts global attention. Sudden spikes often correlate with major news events, public statements, or geopolitical developments.