TEMPO

SKU:BHB11900020
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Suppliers
StressMarq Biosciences Inc.
StressMarq Biosciences Inc.
Details Products
Overview
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TEMPO is a research-grade small-molecule inhibitor of Stable Nitroxyl Radical for Cancer and Oxidative Stress studies. Supplied as a purple solid with >98% purity (CAS 2564-83-2, MW 156.25) dissolvable in DMSO; store at -20°C. For research use only.
Cas No. 2564-83-2
Molecular Formula C9H18NO
Purity >98%
Application Notes Stable Nitroxyl Radical
Options selector
Catalog no. Size
SIH-155-500MG 500 mg
Available Options

Select the variant that best fits your experiment. Availability and lead time may vary by option.

  • Options: Size: 500 mg.
  • Lead time: options listed as “in stock at manufacturer” typically ship in 2-3 business days; other statuses may take longer.
  • Storage: -20ºC
  • Shipping: ships at ambient temperature.
  • Upon receipt: store at the recommended temperature as soon as possible.
  • Sales terms and conditions: Please review prior to ordering.
Field Specification
Alternative names 2,2,6,6-Tetramethylpiperidine 1-oxyl, 2,2,6,6-Tetramethyl-1-piperidinyloxy, free radical, (2,2,6,6-Tetramethyl-1-piperidinyl)oxidanyl, 1,1,5,5-tetramethylpentamethylene nitroxide, 2,2,6,6-Tetramethylpiperidine-1-oxyl
CAS no. 2564-83-2
Applications
  • Functional Assay (In Vitro)
Source Synthetic
Molecular weight 156.25
Molecular formula C9H18NO
Purity >98%
Bioactivity Inhibitor
Activity
  • Inhibitor
Solubility May be dissolved in DMSO (100 mg/ml); or Ethanol (100 mg/ml)
SMILES CC1(CCCC(N1[O])(C)C)C
InChIKey QYTDEUPAUMOIOP-UHFFFAOYSA-N
Form Purple Solid
Storage -20ºC
Shipping Shipped Ambient
Catalog no. (Mfr.) SIH-155
Main SKU BHB11900020

TEMPO (2,2,6,6-Tetramethylpiperidine 1-oxyl) is a stable nitroxide radical widely used as a spin label and redox probe in biological systems. In neuroscience, TEMPO has been explored for its antioxidant properties and ability to scavenge reactive oxygen species. Its membrane-permeable nature allows it to modulate oxidative stress in neuronal cells, potentially protecting against neurodegeneration. TEMPO derivatives have also been investigated for their role in reducing mitochondrial dysfunction and inflammation, key contributors to neurodegenerative pathology.

Classification: Harmful. May be harmful if inhaled, swallowed or absorbed through skin.

Safety Phrases:

  • S22 - Do not breathe dust
  • S36/37/39 - Wear suitable protective clothing, gloves and eye/face protection
  • S45- In case of accident or if you feel unwell, seek medical advice immediately (show the label where possible)

Risk Phrases:

R34- Causes Burns

Hazard Phrases:

H314

Precautionary Phrases:

P280-P305 + P351 + P338-P310

TEMPO (StressMarq Biosciences Inc., Victoria BC CANADA, Catalog # SIH-155)

Need this compound in a format that drops straight into your assay? We can tailor formulation, chemistry, and documentation so your results stay consistent across runs and re-orders.

  • Format options: solid or pre-dissolved solution (choose solvent), target concentration, aliquots, light/moisture-protected packaging
  • Chemistry options: free base/acid vs salt forms, hydrate/solvate preference, stereoisomer control (single enantiomer or racemate), close analogs
  • Add-on labels & handles: D/¹³C/¹⁵N isotopes (LC-MS/internal standards), azide/alkyne or other functional handles for conjugation
  • QC & documentation: standard COA or enhanced analytical pack (HPLC/LC-MS/NMR), chiral purity, residual solvents, water content (KF), method-specific specs
  • Scale & continuity: mg to gram scale, bulk pricing, lot reservation, repeat-order continuity

To quote quickly, tell us: compound name + CAS/structure (SMILES or mol file), intended assay context, solvent preference, salt/stereochemistry requirements, purity/QC level, and the amount (mg–g).

Can’t find the compound you’re looking for?
Send the CAS or structure and your specs. We can help source it, suggest close equivalents, or discuss custom synthesis with the right QC documentation (RUO).

1. Montanari F., Quici S., Henry-Riyad H., Tidwell T.T. (2005) Encyclopedia of Reagents for Organic Synthesis. John Wiley & Sons.

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